Driveable vehicles Problem! URGENT HELP

Hellow, I placed the 3 blueprint vehicles from the asset DriveableVehicles in my game. I set the game mode to Patria_game as mentioned. I place the blueprint of the first person character. I press play and nothing happend. Can somebody help me how to get this to work so when I press play i can spawn a character that can move and so I can enter the vehicles thank you!