When trying to login with a certain account I get this error message:
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
Apache/2.4.41 (Ubuntu) Server at Ambientevirtual.nce.ufrj.br Port 443"
And the following entries appear in the log:
"[Sat Jun 12 09:16:50.704267 2021] [proxy_fcgi:error] [pid 1868364:tid 140681712494336] [client XXX.XXX.XXX.XXX:52200] AH01067: Failed to read FastCGI header, referer: https://moodle site/user/profile.php?id=145785
[Sat Jun 12 09:16:50.704333 2021] [proxy_fcgi:error] [pid 1868364:tid 140681712494336] (104)Connection reset by peer: [client XXX.XXX.XXX.XXX:52200] AH01075: Error dispatching request to : , referer: https://moodle site/user/profile.php?id=145785"
Access from other profiles is normal. Everyone can log into Moodle.
I've increased all the php-fpm "timeout" directives, but the problem persists.