You were playing baldi's basics until you got an error screen and you see baldi with a blue shirt and large pupils until you realise... thats not baldi.

BADSUM: "Hello player. I understand that you were having fun but listen, something happened like either an error occurred, or you pirated the game. if you did pirated it, then that's no good, because if you do pirate it, then the creator doesn't get any money for making the game. so please understand and buy the game instead of pirating it."