Hello,

Thank you for contacting us.

A 500 Internal Server Error is a generic server error, so we'll need a bit more information to identify the cause.

Could you please provide the following?

1. The full error message or a screenshot of the error.
2. The server's PHP error log (or enable Joomla's Debug and Error Reporting = Maximum to capture the actual error).
3. Your PHP version.
4. The method you used to migrate the site (Akeeba Backup, manual migration, etc.).

Also, since you're using the Mednic template with Joomla 6, please confirm that you're using the latest version of the template and all its extensions, as older versions may not be fully compatible with Joomla 6.

Once we have the detailed error message or server log, we'll be able to identify the exact cause and help you resolve it.

Thanks