I have not encountered this problem, I have not yet developed my site enough to use the activities, I continue to prepare the contents. For a course that will last about 40 hours, I do both text research and create the learning method. Lessons, section, cluster and questions ...
And I watched the video you created for the solution. I've marked it as useful. Thank you very much for the work
However, when I saw @Sander's message, I took my backups and updated my moodle version.
I noticed something like this here, if you know, can you answer?
I use 4 plugins in my moodle system, course stats, attandence, customcertificate etc.
When I try to update my Moodle versions, I delete all the moodle installation files. I'm backing up the moddledata folder. When I load the new moodle files and put the old config file into it, it goes into the installation and says that the files of these 4 plugins are not found. Next to it is the update button to install this add-on. But am I doing it wrong? Do I need to back up the plugins in the moodle upload
file besides the moodledata folder?