diff --git a/examples/01-example.php b/examples/01-example.php
index 0c03279..3926c5e 100644
--- a/examples/01-example.php
+++ b/examples/01-example.php
@@ -3,7 +3,6 @@
 require_once __DIR__ . '/../vendor/autoload.php';
 require_once __DIR__ . '/common-part.php';
 
-use Reindexer\Client\Api;
 use Reindexer\Entities\Index as IndexEntity;
 use Reindexer\Services\Database;
 use Reindexer\Services\Namespaces;
@@ -42,7 +41,7 @@
         $response = $namespaceService->create($namespaceName, [$indexId]);
         echo sprintf('Response data: %s', $response->getResponseBody()) . PHP_EOL;
     }
-} catch (Exception $e) {
+} catch (\Throwable $e) {
     echo sprintf(
         'Error %s in file %s on line %s',
         $e->getMessage(),
diff --git a/examples/02-example.php b/examples/02-example.php
index 8563c0c..1718abe 100644
--- a/examples/02-example.php
+++ b/examples/02-example.php
@@ -3,7 +3,6 @@
 require_once __DIR__ . '/../vendor/autoload.php';
 require_once __DIR__ . '/common-part.php';
 
-use Reindexer\Client\Api;
 use Reindexer\Services\Namespaces;
 
 try {
@@ -22,7 +21,7 @@
     } else {
         echo sprintf('Error delete namespace: %s', $response->getResponseBody());
     }
-} catch (Exception $e) {
+} catch (\Throwable $e) {
     echo sprintf(
         'Error %s in file %s on line %s',
         $e->getMessage(),
diff --git a/examples/03-example.php b/examples/03-example.php
index 1151e3e..08f19b3 100644
--- a/examples/03-example.php
+++ b/examples/03-example.php
@@ -3,9 +3,7 @@
 require_once __DIR__ . '/../vendor/autoload.php';
 require_once __DIR__ . '/common-part.php';
 
-use Reindexer\Services\Database;
 use Reindexer\Services\Item;
-use Reindexer\Services\Namespaces;
 use Reindexer\Services\Query;
 
 try {
@@ -41,5 +39,11 @@
     $response = $sqlService->createByHttpGet("SELECT * from $namespaceName");
     $response = $sqlService->createSqlQueryByHttpPost("UPDATE $namespaceName SET name = 'John Doe changed 2' WHERE id = 1");
     var_dump($response->getResponseBody());
-} catch (Exception $e) {
+} catch (\Throwable $e) {
+    echo sprintf(
+        'Error %s in file %s on line %s',
+        $e->getMessage(),
+        $e->getFile(),
+        $e->getLine()
+    );
 }