Disc Authorization Failure

I have just dowloaded Supernatural, but when I come to the menu I get this message: Disc Authorization Failure.
Well, I don't have a disc but it should work anyway. I only have the base game and Supernatural, is it impossible to install the Ultimate Fix without Generations or Town Life?
Please help, I really don't know how to solve this

1. Install The Sims 3 and all expansions you like, but install AT LEAST one of the following expansions: Supernatural, Diesel Stuff, Katy Perry Sweet Treats, Showtime, Master Suite Stuff, Pets, Town Life Stuff, Generations.* (You may skip all the "# Crack" folders. You DO NOT need to use any "# Crack" folders!)

That's the first step of the Ultimate Fix. It right there, states that you have at least one of the expansions to run the Ultimate Fix.

I would honestly though, recommend getting all the Expansions.

I installed the ultimate fix, following the instructions very carefully but it still doesn't work. Is it something else I can do?

Hello,

Follow these instructions instead: https://games4theworld.forumotion.com/t1171-must-read-how-to-install-the-sims-3-correctly
Re-do ALL steps and do not skip any, not even step 2!

Re-install the game with ALL The expansions. Then get the Ultimate Fix and just do it step by step like Admin said of it and put the files in the #Crack folder in the Sims 3 Base game Bin folder and then open the launcher.

Hello,

No need to reinstall everything (yet?), just follow the instructions from the link I provided.