Sorry, there was a problem loading system config

Hi,

I cannot login as admin anymore. I get the message:

“Sorry, there was a problem loading system config. Please contact your system administrator.”

The apps still work, I just cannot enter the backend anymore… What to do / try?

Thanks & regards,

Erik

Switching (back) PHP version 7.3 > 7.1 solved the problem… It would be interesting to know the reason why. Anyone?

Regards,

Erik