Welcome to the Club of Dumb Mistakes. I can say: Been there, (but didn't do 'that' ...)
I'm not familiar with a jump board but from a safety standpoint, you might want to simply get a new one. What's to say that what you end up doing won't peal or separate, and create a potential hazard. I donno - Maybe someone else knows EXACTLY what you should do.
If you end up buying a new board, just chalk it up to the 'total experience' you're having. My best to ya and hope this helps.
Jay J -Moderator
PS: If you don't get satisfatory help on this BBS, consult a Pool Supplier for advice. (But then, again, they may be a bit biased ...)