error after uninstalling the plugin

Hello,

We apologize for the issue you are facing after uninstalling the Rank Math plugin. The warnings you are seeing indicate that the system is trying to include language files for the Rank Math plugin that no longer exist because the plugin has been uninstalled.

To resolve this issue, we recommend the following steps:

1. Clear Cache: If you have any caching plugins or server-side caching, clear all caches to ensure that old references are removed.

2. Check for Residual Files: Sometimes, files may remain in your WordPress installation even after a plugin is uninstalled. Check your wp-content/languages/plugins/ directory and remove any leftover files related to Rank Math, such as seo-by-rank-math-cs_CZ.l10n.php and seo-by-rank-math-de_DE.l10n.php.

3. Reinstall and Uninstall Again: If the issue persists, you can try reinstalling the Rank Math plugin and then uninstalling it again properly. Make sure to follow the steps to completely remove all data as outlined in our documentation. You can find guidance on completely uninstalling Rank Math here.

4. Check for Other Plugins: Since you mentioned disabling other plugins, ensure that there are no conflicts with other plugins that might be causing these warnings.

If you continue to experience issues after trying these steps, please reply to this ticket with your site URL so that a human agent from our support team can assist you further. Thank you for raising this concern, and we hope to help you resolve it soon!

Sources:
How to Completely Uninstall Rank Math From Your Website » Rank Math

Hello,

Could you please confirm if you have already managed to resolve this issue?

Looking forward to helping you.