So my game was working fine, although I didnt play it for a long time I decided to play today so I came here and saw that there is a new update so I installed it with sly's logo pack and when i wanted to start to play there was this thing that I've never seen before asking me for my key to enter the game so I went to my mail copy pasta the key and it says it doesnt work, so I said fk it I want to play I started to play and after 2 seasons they say you cant play anymore because its a demo but it isnt I paid the game full price, so whats going on ? I tried to enter the key multiple times it doesnt work.

Open a ticket with support. Our old licensing system went away and we had to transition to a new one. You should be able to get a key from support.