Ok, thanks, you might be right. The stacktrace doesn’t point out the “real” error message.
I was using the “formatted” error, the “raw” error tells:
"Previous":{"Exception":"Error","Message":"Call to undefined function OCA\\ServerInfo\\OperatingSystems\\shell_exec()","Code":0,"Trace":[{"file":"/web/nextcloud/apps/serverinfo/lib/OperatingSystems/DefaultOs.php","line":186,"function":"executeCommand","class":"OCA\\ServerInfo\\OperatingSystems\\DefaultOs","type":"->","args":["df -TPk"]},{"file":"/web/nextcloud/apps/serverinfo/lib/Os.php","line":78,"function":"getDiskInfo"
I didn’t ask the Mailcow community to fix the Nextcloud error.
I was asking how I could enable the shell_exec function, as it seems for me that this is disabled.
And as the PHP seems to be hidden in some container somewhere, I can’t edit the php.ini file.
So please, I you have an idea how to override the php.ini file, feel free to answer.