Hello.
I updated the plugins that needed to be updated in the production moodle site I administrate, and I also added the meta_course plugin.
Since then, when I go to the site administration I'm seeing this error, I checked mod\studentquiz\commentarea\container.php (the file is attached in the question) but the error says it can't find the class and it seems to be looking in mod_studentquiz\commentarea\container but the server has the following files structure mod\studentquiz\commentarea\container. So in case it was trying to look a different way, I duplicated the folder, so in the root level I now have mod and mod_studentquiz folders: that didn't work, the error is still there.
Also, I just saw a co-worker who has less privileges than I do but who can go to her own version of the site administration, and she can see the section normally, and doesn't see any error. I don't understand what is going on. Please help.
Thanks a lot!