Nextcloud login page error

Hello, I just migrated my box to a new one. Mails and everything is ok except I am having this error on my Nextcloud login page:

Error

Config is set to be read-only via option "config_is_read_only".

Unset "config_is_read_only" to allow changes to the config file.

Do anyone know the location to unset this? Thanks in advance :slight_smile:

Did you run the setup script after migration? Did it finish without errors?
The config in question is under /home/user-data/owncloud/config.php (or there about, doing this from top of mind)

@KiekerJan thank you. Actually I did not, my bad. I have fix it with sudo mailinabox.