I am currently migrating around 30 websites from Joomla 3 to Jommla 4. I have already successfully restored 29 pages from the update on the test server. But one side behaves incorrectly.
After the restore, I can no longer log into the backend. I have tried this several times.
The problematic page is no different and does not differ from the error-free page.
The provider and the server setting are identical for these pages.
In the forum I found a reference to the configuration.php. All parameters mentioned are empty.
Is there a solution for this. Best regards Ingo