Perhaps there is a wrong declarattion within the virtualhosts.conf:
Current stuation with some occurances:
This declaration prevent the mode switch of my WordPress firewall (NinjaFirewall) from WAF to Full-F
I replaced all occurrences of:
The difference is that I removed the tailing ‘/’ in ‘fcgi://localhost’.
I just checked on a Debian installation, and there’s no trailing slash.
Now my problem is solved.