Humble Bundle gave me a key and I already own the game so

Whenever I get past the intro the loading bar gets stuck at around 75%

Hey friends, I absolutely love this game, and I want to share my love by helping build our community. To do so, I am going to gift as many copies of the game as I can afford while the game while it's on sale. So, if you want to join us in FvF, or you have friends interested in playing, let me know! Have a possum day!...

Please help :(

help