Managed to click Y when I should have selected N when I did an update of the server. Now ispconfig doesn't work. Nor does any sites on the server. How do I correct this? help! System is Ubuntu. I believe either 16.04.7
If you updated the OS, you need to follow up with installing all required packages for the new OS (refer to the perfect server guide for your new OS), then run the ISPConfig updater to reconfigure services.