So, I was doing an experiment a couple of weeks ago with a new CMS for my website, when I found that the forums were completely gone after I ended the experiment. I don’t know what happened, but every single file needed to run the forums is gone! The good news is that the database tables are still there, so there’s no loss of data. All I have to do is re-upload the forum software and the extensions that were in use, manually fill-in the config file so that it can connect to the database, and we have the forums back as if they were never gone! As to what caused it to vanish in the first place, I believe that I must have accidentally deleted the forums while I was trying to do the experiment.
PS: The experiment failed to produce the desired results.