Garage door swing door, manually stuck

Hi, I have the problem that my swing gate has been sticking at the top left for some time. Unfortunately, I have not found anything on how to adjust the gate so far. The gate is about 50 years old and otherwise works perfectly. A guide roller exists only on the left and right "at the bottom". At the top, the gate is apparently guided by two springs on the left and right. The gate hangs freely in the air at the back when in the open horizontal position. "Can the gate be adjusted somewhat by changing these springs?" Best regards, Erich

I think without comprehensive photos, no one will be able to give you any truly useful recommendations...