Oddly enough, this error has appeared once again. I have just completed upgrading to 3.1 and now no one can log in. I just get a blank white window after clicking the log in button.
I was able to turn on debugging (via command line) and found this error message.
Warning: require_once(/var/www/user/profile/field/o365/field.class.php): failed to open stream: No such file or directory in /var/www/user/profile/lib.php on line 574
Fatal error: require_once(): Failed opening required '/var/www/user/profile/field/o365/field.class.php' (include_path='/var/www/lib/pear:.:/usr/share/php:/usr/share/pear') in /var/www/user/profile/lib.php on line 574
I can't figure this out since I have either uninstalled or disabled all o365 plugins, including openID plugins. This has happened about a year ago (https://moodle.org/mod/forum/discuss.php?d=311031) and I took care of it then by disabling those plugins. Why this has returned is a mystery to me.
Is there a way to uninstall or remove plugins via command line, where would they be?
Am I correct in assuming that if I remove them, this error would no longer surface and people can log in?