Hi Nipheria93! Your account doesn't appear to be banned, and this doesn't appear to be a free weekend version of the game. If you're unable to locate your game in the Uplay library, I would recommend opening a ticket at
https://support.ubi.com by logging in, scrolling down, and clicking Contact Customer Support.
If you are able to see the game, I'd recommend
verifying your game's files using these instructions, and if that doesn't alleviate the problem, you should then open a ticket.
Moving this thread over to the technical support section.