How to solve this problem when building a page

[HVGNc]

This is extracted from the page error code. Where is the error and how to solve it
``
Configuration file: none Logging at level: debug GitHub Pages: github-pages v228 GitHub Pages: jekyll v3.9.3 Theme: jekyll-theme-primer Theme source: /usr/local/bundle/gems/jekyll-theme-primer-0.6.0 Requiring: jekyll-github-metadata To use retry middleware with Faraday v2.0+, install faraday-retry` gem
Liquid Exception: Liquid syntax error (line 5): Unknown tag 'hint' in page-1.md
/usr/local/bundle/gems/liquid-4.0.4/lib/liquid/document.rb:23:in `unknown_tag': Liquid syntax error (line 5): Unknown tag 'hint' (Liquid::SyntaxError)
from /usr/local/bundle/gems/liquid-4.0.4/lib/liquid/document.rb:11:in `block in parse'
from /usr/local/bundle/gems/liquid-4.0.4/lib/liquid/block_body.rb:32:in `parse'
from /usr/local/bundle/gems/liquid-4.0.4/lib/liquid/document.rb:10:in `parse'
from /usr/local/bundle/gems/liquid-4.0.4/lib/liquid/document.rb:5:in `parse'
from /usr/local/bundle/gems/liquid-4.0.4/lib/liquid/template.rb:130:in `parse'
from /usr/local/bundle/gems/liquid-4.0.4/lib/liquid/template.rb:114:in `parse'
from /usr/local/bundle/gems/jekyll-3.9.3/lib/jekyll/liquid_renderer/file.rb:13:in `block in parse'`