did you actually buy the game? you need to the game to use the season pass. but basically Gold mode is the trial version of the game. its free and you basically get access to the full game just only playable with people who downloaded the trial as well, or buyers who opened the game in gold mode. In gold mode you dont have access to any dlc, and i believe there are no updates to the game when played in gold mode.
I walk alone in the universe as the last of The Time Lords!
Yea I have the real game and the season pass. I deleted everything except my profile save and it didn't work. Still says gold mode. I even found an option in the settings that said regular mode but that didn't even fix it