Fiberglass wall repair?

I hope this is the best forum for this question.

Need help fixing a small crack/break in my outer wall. Not sure how it developed....being hit by something or maybe this delaminating that I've read about (hopefully not).

What's the best option? Seems like a sealant could be used. Some kind of caulk or adhesive to coat it and lock it up?

I'll try and take a pic soon.

Thanks!