replace the 5s with i (charrssss)
If you want to make the door rotate with tween service: I recommend creating a part and make sure the center of that part is on the axis you want the door to rotate at. This part should be invisble, have collisions off and be anchored, it should also be welded to the rest of the door which should be unanchored. You can then apply tweens on the rotation of that part to rotate the door.