I disconnected my automatic garage door opener and I can see when closing the door manually, and it's almost at the bottom, the remaining panel gets stuck and it won't fully close. There is no visible barrier in the tracks or anywhere. However, I can't fully see the springs in this position. I'm not sure if the springs are the problem because I can open and close it fine up to that position. It's been working fine until today when I found one of the bottom wheels was displaced. I put it back in and it's still not fully closing.
Any idea what might be wrong?