I am reaching out to you due to an issue I have encountered after upgrading from Joomla 3 to Joomla 4 on a test site. Before executing the upgrade, I disabled the plugins for my Regular Labs extensions. The upgrade seemed successful at first.
However, when I tried to reinstall the ReReplacer, I encountered a few errors:
Despite these errors, I continued with reinstalling the Cache cleaner, and that's when a major problem arose. Now, I'm dealing with an Error 500, which is affecting the entire backend of the site.