Hello everybody. Faced such a problem. I tested the server on my PC and everything worked perfectly, all the scripts, add-ons and stuff. I put the server on the hosting, the hosting does not work F4 menus, tab menus and several other addons. I have no idea how to fix this. Please help me. For 3 days I am suffering with this problem. I reinstalled the server 4 times already.
Nobody can help you without any errors.
I solved the problem. It was necessary to rename all addons to the lower register.