diff --git a/ban.go b/ban.go
index 4ad42cc..2ad7a5e 100644
--- a/ban.go
+++ b/ban.go
@@ -4,14 +4,11 @@ import (
 	"crypto/md5"
 	"encoding/binary"
 	"fmt"
-	"strconv"
 
 	log "github.com/sirupsen/logrus"
 	"github.com/wdvxdr1123/ZeroBot/utils/helper"
 )
 
-var banCache = make(map[uint64]bool)
-
 // Ban 禁止某人在某群使用本插件
 func (m *Control[CTX]) Ban(uid, gid int64) {
 	var err error
@@ -21,7 +18,7 @@ func (m *Control[CTX]) Ban(uid, gid int64) {
 		id := binary.LittleEndian.Uint64(digest[:8])
 		m.Manager.Lock()
 		err = m.Manager.D.Insert(m.Service+"ban", &BanStatus{ID: int64(id), UserID: uid, GroupID: gid})
-		banCache[id] = true
+		m.Manager.banCache[id] = true
 		m.Manager.Unlock()
 		if err == nil {
 			log.Debugf("[control] plugin %s is banned in grp %d for usr %d.", m.Service, gid, uid)
@@ -33,7 +30,7 @@ func (m *Control[CTX]) Ban(uid, gid int64) {
 	id := binary.LittleEndian.Uint64(digest[:8])
 	m.Manager.Lock()
 	err = m.Manager.D.Insert(m.Service+"ban", &BanStatus{ID: int64(id), UserID: uid, GroupID: 0})
-	banCache[id] = true
+	m.Manager.banCache[id] = true
 	m.Manager.Unlock()
 	if err == nil {
 		log.Debugf("[control] plugin %s is banned in all grp for usr %d.", m.Service, uid)
@@ -47,8 +44,8 @@ func (m *Control[CTX]) Permit(uid, gid int64) {
 		digest = md5.Sum(helper.StringToBytes(fmt.Sprintf("[%s]%d_%d", m.Service, uid, gid)))
 		id := binary.LittleEndian.Uint64(digest[:8])
 		m.Manager.Lock()
-		_ = m.Manager.D.Del(m.Service+"ban", "WHERE id = "+strconv.FormatInt(int64(id), 10))
-		banCache[id] = false
+		_ = m.Manager.D.Del(m.Service+"ban", "WHERE id = ?", id)
+		m.Manager.banCache[id] = false
 		m.Manager.Unlock()
 		log.Debugf("[control] plugin %s is permitted in grp %d for usr %d.", m.Service, gid, uid)
 		return
@@ -57,8 +54,8 @@ func (m *Control[CTX]) Permit(uid, gid int64) {
 	digest = md5.Sum(helper.StringToBytes(fmt.Sprintf("[%s]%d_all", m.Service, uid)))
 	id := binary.LittleEndian.Uint64(digest[:8])
 	m.Manager.Lock()
-	_ = m.Manager.D.Del(m.Service+"ban", "WHERE id = "+strconv.FormatInt(int64(id), 10))
-	banCache[id] = false
+	_ = m.Manager.D.Del(m.Service+"ban", "WHERE id = ?", id)
+	m.Manager.banCache[id] = false
 	m.Manager.Unlock()
 	log.Debugf("[control] plugin %s is permitted in all grp for usr %d.", m.Service, uid)
 }
@@ -72,41 +69,41 @@ func (m *Control[CTX]) IsBannedIn(uid, gid int64) bool {
 		digest = md5.Sum(helper.StringToBytes(fmt.Sprintf("[%s]%d_%d", m.Service, uid, gid)))
 		id := binary.LittleEndian.Uint64(digest[:8])
 		m.Manager.RLock()
-		if yes, ok := banCache[id]; ok {
+		if yes, ok := m.Manager.banCache[id]; ok {
 			m.Manager.RUnlock()
 			return yes
 		}
-		err = m.Manager.D.Find(m.Service+"ban", &b, "WHERE id = "+strconv.FormatInt(int64(id), 10))
+		err = m.Manager.D.Find(m.Service+"ban", &b, "WHERE id = ?", id)
 		m.Manager.RUnlock()
 		if err == nil && gid == b.GroupID && uid == b.UserID {
 			log.Debugf("[control] plugin %s is banned in grp %d for usr %d.", m.Service, b.GroupID, b.UserID)
 			m.Manager.Lock()
-			banCache[id] = true
+			m.Manager.banCache[id] = true
 			m.Manager.Unlock()
 			return true
 		}
 		m.Manager.Lock()
-		banCache[id] = false
+		m.Manager.banCache[id] = false
 		m.Manager.Unlock()
 	}
 	digest = md5.Sum(helper.StringToBytes(fmt.Sprintf("[%s]%d_all", m.Service, uid)))
 	id := binary.LittleEndian.Uint64(digest[:8])
 	m.Manager.RLock()
-	if yes, ok := banCache[id]; ok {
+	if yes, ok := m.Manager.banCache[id]; ok {
 		m.Manager.RUnlock()
 		return yes
 	}
-	err = m.Manager.D.Find(m.Service+"ban", &b, "WHERE id = "+strconv.FormatInt(int64(id), 10))
+	err = m.Manager.D.Find(m.Service+"ban", &b, "WHERE id = ?", id)
 	m.Manager.RUnlock()
 	if err == nil && b.GroupID == 0 && uid == b.UserID {
 		log.Debugf("[control] plugin %s is banned in all grp for usr %d.", m.Service, b.UserID)
 		m.Manager.Lock()
-		banCache[id] = true
+		m.Manager.banCache[id] = true
 		m.Manager.Unlock()
 		return true
 	}
 	m.Manager.Lock()
-	banCache[id] = false
+	m.Manager.banCache[id] = false
 	m.Manager.Unlock()
 	return false
 }
diff --git a/block.go b/block.go
index 47a6959..bd473b2 100644
--- a/block.go
+++ b/block.go
@@ -1,20 +1,14 @@
 package control
 
-import (
-	"strconv"
-)
-
 func (manager *Manager[CTX]) initBlock() error {
 	return manager.D.Create("__block", &BlockStatus{})
 }
 
-var blockCache = make(map[int64]bool)
-
 // DoBlock 封禁
 func (manager *Manager[CTX]) DoBlock(uid int64) error {
 	manager.Lock()
 	defer manager.Unlock()
-	blockCache[uid] = true
+	manager.blockCache[uid] = true
 	return manager.D.Insert("__block", &BlockStatus{UserID: uid})
 }
 
@@ -22,21 +16,21 @@ func (manager *Manager[CTX]) DoBlock(uid int64) error {
 func (manager *Manager[CTX]) DoUnblock(uid int64) error {
 	manager.Lock()
 	defer manager.Unlock()
-	blockCache[uid] = false
-	return manager.D.Del("__block", "where uid = "+strconv.FormatInt(uid, 10))
+	manager.blockCache[uid] = false
+	return manager.D.Del("__block", "where uid = ?", uid)
 }
 
 // IsBlocked 是否封禁
 func (manager *Manager[CTX]) IsBlocked(uid int64) bool {
 	manager.RLock()
-	isbl, ok := blockCache[uid]
+	isbl, ok := manager.blockCache[uid]
 	manager.RUnlock()
 	if ok {
 		return isbl
 	}
 	manager.Lock()
 	defer manager.Unlock()
-	isbl = manager.D.CanFind("__block", "where uid = "+strconv.FormatInt(uid, 10))
-	blockCache[uid] = isbl
+	isbl = manager.D.CanFind("__block", "where uid = ?", uid)
+	manager.blockCache[uid] = isbl
 	return isbl
 }
diff --git a/control.go b/control.go
index 49d156a..d47f30d 100644
--- a/control.go
+++ b/control.go
@@ -2,7 +2,6 @@ package control
 
 import (
 	"math/bits"
-	"strconv"
 
 	log "github.com/sirupsen/logrus"
 )
@@ -54,7 +53,7 @@ func (manager *Manager[CTX]) NewControl(service string, o *Options[CTX]) *Contro
 func (m *Control[CTX]) Enable(groupID int64) {
 	var c GroupConfig
 	m.Manager.RLock()
-	err := m.Manager.D.Find(m.Service, &c, "WHERE gid="+strconv.FormatInt(groupID, 10))
+	err := m.Manager.D.Find(m.Service, &c, "WHERE gid = ?", groupID)
 	m.Manager.RUnlock()
 	if err != nil {
 		c.GroupID = groupID
@@ -74,7 +73,7 @@ func (m *Control[CTX]) Enable(groupID int64) {
 func (m *Control[CTX]) Disable(groupID int64) {
 	var c GroupConfig
 	m.Manager.RLock()
-	err := m.Manager.D.Find(m.Service, &c, "WHERE gid="+strconv.FormatInt(groupID, 10))
+	err := m.Manager.D.Find(m.Service, &c, "WHERE gid = ?", groupID)
 	m.Manager.RUnlock()
 	if err != nil {
 		c.GroupID = groupID
@@ -99,7 +98,7 @@ func (m *Control[CTX]) Reset(groupID int64) {
 		} else {
 			m.Cache[groupID] = 0
 		}
-		err := m.Manager.D.Del(m.Service, "WHERE gid="+strconv.FormatInt(groupID, 10))
+		err := m.Manager.D.Del(m.Service, "WHERE gid = ?", groupID)
 		m.Manager.Unlock()
 		if err != nil {
 			log.Errorf("[control] %v", err)
@@ -145,7 +144,7 @@ func (m *Control[CTX]) IsEnabledIn(gid int64) bool {
 	m.Manager.RUnlock()
 	if !ok {
 		m.Manager.RLock()
-		err = m.Manager.D.Find(m.Service, &c, "WHERE gid="+strconv.FormatInt(gid, 10))
+		err = m.Manager.D.Find(m.Service, &c, "WHERE gid = ?", gid)
 		m.Manager.RUnlock()
 		if err == nil && gid == c.GroupID {
 			m.Manager.Lock()
diff --git a/data.go b/data.go
index 7beac42..d3c7185 100644
--- a/data.go
+++ b/data.go
@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"errors"
 	"math/bits"
-	"strconv"
 
 	log "github.com/sirupsen/logrus"
 	"github.com/wdvxdr1123/ZeroBot/utils/helper"
@@ -22,7 +21,7 @@ func (m *Control[CTX]) GetData(gid int64) int64 {
 	var c GroupConfig
 	var err error
 	m.Manager.RLock()
-	err = m.Manager.D.Find(m.Service, &c, "WHERE gid="+strconv.FormatInt(gid, 10))
+	err = m.Manager.D.Find(m.Service, &c, "WHERE gid = ?", gid)
 	m.Manager.RUnlock()
 	if err == nil && gid == c.GroupID {
 		log.Debugf("[control] plugin %s of grp %d : 0x%x", m.Service, c.GroupID, c.Disable>>1)
@@ -35,7 +34,7 @@ func (m *Control[CTX]) GetData(gid int64) int64 {
 func (m *Control[CTX]) SetData(groupID int64, data int64) error {
 	var c GroupConfig
 	m.Manager.RLock()
-	err := m.Manager.D.Find(m.Service, &c, "WHERE gid="+strconv.FormatInt(groupID, 10))
+	err := m.Manager.D.Find(m.Service, &c, "WHERE gid = ?", groupID)
 	m.Manager.RUnlock()
 	if err != nil {
 		c.GroupID = groupID
@@ -81,7 +80,7 @@ func (manager *Manager[CTX]) getExtra(gid int64, obj any) error {
 	}
 	var rsp ResponseGroup
 	manager.RLock()
-	err := manager.D.Find("__resp", &rsp, "where gid = "+strconv.FormatInt(gid, 10))
+	err := manager.D.Find("__resp", &rsp, "where gid = ?", gid)
 	manager.RUnlock()
 	if err != nil || rsp.Extra == "-" {
 		manager.Lock()
diff --git a/go.mod b/go.mod
index a975f0b..80feee8 100644
--- a/go.mod
+++ b/go.mod
@@ -3,23 +3,25 @@ module github.com/FloatTech/zbpctrl
 go 1.20
 
 require (
-	github.com/FloatTech/sqlite v1.6.3
+	github.com/FloatTech/sqlite v1.7.0
 	github.com/sirupsen/logrus v1.9.3
-	github.com/wdvxdr1123/ZeroBot v1.7.5-0.20240501144516-eb574bbdad32
+	github.com/wdvxdr1123/ZeroBot v1.8.0
 )
 
 require (
-	github.com/FloatTech/ttl v0.0.0-20220715042055-15612be72f5b // indirect
-	github.com/google/uuid v1.3.0 // indirect
-	github.com/mattn/go-isatty v0.0.16 // indirect
-	github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 // indirect
-	golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab // indirect
-	modernc.org/libc v1.21.5 // indirect
-	modernc.org/mathutil v1.5.0 // indirect
-	modernc.org/memory v1.4.0 // indirect
-	modernc.org/sqlite v1.20.0 // indirect
+	github.com/FloatTech/ttl v0.0.0-20240716161252-965925764562 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/ncruces/go-strftime v0.1.9 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
+	golang.org/x/sys v0.26.0 // indirect
+	modernc.org/libc v1.61.0 // indirect
+	modernc.org/mathutil v1.6.0 // indirect
+	modernc.org/memory v1.8.0 // indirect
+	modernc.org/sqlite v1.33.1 // indirect
 )
 
-replace modernc.org/sqlite => github.com/fumiama/sqlite3 v1.20.0-with-win386
+replace modernc.org/sqlite => github.com/fumiama/sqlite3 v1.29.10-simp
 
-replace github.com/remyoudompheng/bigfft => github.com/fumiama/bigfft v0.0.0-20211011143303-6e0bfa3c836b
+replace modernc.org/libc => github.com/fumiama/libc v0.0.0-20240530081950-6f6d8586b5c5
diff --git a/go.sum b/go.sum
index 2312c3f..9448882 100644
--- a/go.sum
+++ b/go.sum
@@ -1,36 +1,51 @@
-github.com/FloatTech/sqlite v1.6.3 h1:MQkqBNlkPuCoKQQgoNLuTL/2Ci3tBTFAnVYBdD0Wy4M=
-github.com/FloatTech/sqlite v1.6.3/go.mod h1:zFbHzRfB+CJ+VidfjuVbrcin3DAz283F7hF1hIeHzpY=
-github.com/FloatTech/ttl v0.0.0-20220715042055-15612be72f5b h1:tvciXWq2nuvTbFeJGLDNIdRX3BI546D3O7k7vrVueZw=
-github.com/FloatTech/ttl v0.0.0-20220715042055-15612be72f5b/go.mod h1:fHZFWGquNXuHttu9dUYoKuNbm3dzLETnIOnm1muSfDs=
+github.com/FloatTech/sqlite v1.7.0 h1:FGSn4pCR12kESozn7IvNx3U39dwR/AcFM9oPyGACsl0=
+github.com/FloatTech/sqlite v1.7.0/go.mod h1:/4tzfCGhrZnnjC1U8vcfwGQeF6eR649fhOsS3+Le0+s=
+github.com/FloatTech/ttl v0.0.0-20240716161252-965925764562 h1:snfw7FNFym1eNnLrQ/VCf80LiQo9C7jHgrunZDwiRcY=
+github.com/FloatTech/ttl v0.0.0-20240716161252-965925764562/go.mod h1:fHZFWGquNXuHttu9dUYoKuNbm3dzLETnIOnm1muSfDs=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/fumiama/bigfft v0.0.0-20211011143303-6e0bfa3c836b h1:Zt3pFQditAdWTHCOVkiloc9ZauBoWrb37guFV4iIRvE=
-github.com/fumiama/bigfft v0.0.0-20211011143303-6e0bfa3c836b/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
-github.com/fumiama/sqlite3 v1.20.0-with-win386 h1:ZR1AXGBEtkfq9GAXehOVcwn+aaCG8itrkgEsz4ggx5k=
-github.com/fumiama/sqlite3 v1.20.0-with-win386/go.mod h1:Os58MHwYCcYZCy2PGChBrQtBAw5/LS1ZZOkfc+C/I7s=
-github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
-github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
-github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/fumiama/libc v0.0.0-20240530081950-6f6d8586b5c5 h1:jDxsIupsT84A6WHcs6kWbst+KqrRQ8/o0VyoFMnbBOA=
+github.com/fumiama/libc v0.0.0-20240530081950-6f6d8586b5c5/go.mod h1:15P6ublJ9FJR8YQCGy8DeQ2Uwur7iW9Hserr/T3OFZE=
+github.com/fumiama/sqlite3 v1.29.10-simp h1:c5y3uKyU0q9t0/SyfynzYyuslQ5zP+5CD8e0yYY554A=
+github.com/fumiama/sqlite3 v1.29.10-simp/go.mod h1:ItX2a1OVGgNsFh6Dv60JQvGfJfTPHPVpV6DF59akYOA=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdhx/f4=
+github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec h1:W09IVJc94icq4NjY3clb7Lk8O1qJ8BdBEF8z0ibU0rE=
+github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
-github.com/wdvxdr1123/ZeroBot v1.7.5-0.20240501144516-eb574bbdad32 h1:GuVwh4uGtDegpKNgSkcqpbISLAn5nCpqoGxXmiEv4iI=
-github.com/wdvxdr1123/ZeroBot v1.7.5-0.20240501144516-eb574bbdad32/go.mod h1:J6uHaXS/Am2VsLxF9TcU6il19PbOeC4SvgxHJ1E2jaE=
+github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
+github.com/wdvxdr1123/ZeroBot v1.8.0 h1:v7m+0kGtL6XQlUH9O/LzmOntDJs2clzVj93YsAWWMbk=
+github.com/wdvxdr1123/ZeroBot v1.8.0/go.mod h1:C86nQ0gIdAri4K2vg8IIQIslt08zzrKMcqYt8zhkx1M=
+golang.org/x/mod v0.16.0 h1:QX4fJ0Rr5cPQCF7O9lh9Se4pmwfwskqZfq5moyldzic=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab h1:2QkjZIsXupsJbJIdSjjUOgWK3aEtzyuh2mPt3l/CkeU=
-golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo=
+golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/tools v0.19.0 h1:tfGCXNR1OsFG+sVdLAitlpjAvD/I6dHDKnYrpEZUHkw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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diff --git a/manager.go b/manager.go
index d079211..036c6c6 100644
--- a/manager.go
+++ b/manager.go
@@ -13,8 +13,10 @@ import (
 // Manager 管理
 type Manager[CTX any] struct {
 	sync.RWMutex
-	M map[string]*Control[CTX]
-	D sql.Sqlite
+	M          map[string]*Control[CTX]
+	D          sql.Sqlite
+	banCache   map[uint64]bool
+	blockCache map[int64]bool
 }
 
 // NewManager 打开管理数据库
@@ -38,8 +40,10 @@ func NewManager[CTX any](dbpath string) (m Manager[CTX]) {
 		}
 	}
 	m = Manager[CTX]{
-		M: map[string]*Control[CTX]{},
-		D: sql.Sqlite{DBPath: dbpath},
+		M:          map[string]*Control[CTX]{},
+		D:          sql.New(dbpath),
+		banCache:   make(map[uint64]bool, 8),
+		blockCache: make(map[int64]bool, 8),
 	}
 	err := m.D.Open(time.Hour)
 	if err != nil {
diff --git a/response.go b/response.go
index c7294bc..83be7e9 100644
--- a/response.go
+++ b/response.go
@@ -31,7 +31,7 @@ func (manager *Manager[CTX]) Silence(gid int64) error {
 	}
 	manager.Lock()
 	respCache[gid] = "-"
-	err := manager.D.Del("__resp", "where gid = "+strconv.FormatInt(gid, 10))
+	err := manager.D.Del("__resp", "where gid = ?", gid)
 	manager.Unlock()
 	return err
 }
@@ -61,7 +61,7 @@ func (manager *Manager[CTX]) CanResponse(gid int64) bool {
 		return true
 	}
 	manager.RLock()
-	err = manager.D.Find("__resp", &rsp, "where gid = "+strconv.FormatInt(gid, 10))
+	err = manager.D.Find("__resp", &rsp, "where gid = ?", gid)
 	manager.RUnlock()
 	if err != nil {
 		manager.Lock()