Can any film experts help me with what happened on this frame? 35mm, Gold200, Canon A1, and the frames before and after this were normal. It was developed and scanned by a local store.

In life, the secret to happiness is not in having everything, but in being grateful for what you have and making the most of it.

It might be a light leak or a development error. Sometimes film can get exposed during loading or processing. If it's consistent, try checking your camera seals or consider a different lab.