Sometimes, the theme (or "skin") you are using is incompatible with the new PHP version on your server.

Players occasionally report "com errors" or loading issues when trying to access MH Oldschool resources. Common troubleshooting steps include: Help:Translation - Monster Hunter Wiki

: Ensure any tables for item drops or monster stats use the wiki's existing CSS templates for visual consistency. 3. Submitting the Change

The "Old School" way was storing pages in a SQL database. The "New School" way is using a wiki platform (like Wiki.js or Gollum) that stores pages as Markdown files in a GitHub or GitLab repository.

Stop installing wikis directly onto a server’s operating system. If you run your wiki in a Docker container, you can snapshot the entire environment. If an update breaks the wiki, you simply roll back the container in seconds. No more database nightmares.

mholdschool wiki fix refers to repairing or improving a MediaWiki-based site (or similar wiki) named "mholdschool" — addressing broken pages, corrupted data, navigation issues, template errors, and search/indexing problems to restore full functionality and usability.