I've just installed the virtualmin, webmin and usermin upgrades posted today on a Debian 9 system using PHP7.0-FPM for all sites, and they have all stopped working.
I did the upgrade by: sudo aptitude upgrade
and those were the only packages that have changed. (no standard Debian packages to upgrade)
My apache2 error log file contains pairs of entries like this:
[proxy_fcgi:error] [pid 23283:tid 140561914713856] [client 2a02:8010:6315:0:7433:f2a:a4f6:d8c9:36916] AH01079: failed to make connection to backend: localhost
[proxy:error] [pid 26583:tid 140687131494144] (111)Connection refused: AH00957: FCGI: attempt to connect to 127.0.0.1:8063 (*) failed
I'm not hugely experienced with FPM and don't know where to start. Any ideas?