Getting error when trying to login

Nextcloud version : 20.0.1
Operating system and version : Raspban os “10 (buster)”
Apache or nginx version : Apache/2.4.38 (Raspbian)
PHP version : PHP 7.3.19-1~deb10u1

The issue you are facing:

Is this the first time you’ve seen this error? (Y/N):

Steps to replicate it:

  1. try to login
    page url in addressbar changes to dashboard then this error window

Please help !

Hi @vitachaos

Did this come all of the sudden or did you do something on your server before this happend? Some configuration changes or upgrades related to the PHP packegaes or the database, installed or removed some packages on your server, installed some app on your Nextcloud instance…?