u/interstatelovesong94

My guitar fell 4 feet onto a concrete floor because I stupidly hung it up with my wireless back still in my pocket. Would like to fix it myself if possible. Doesn't have to be perfect, I can live with some scars but I'd like to make it structurelly sound with the strap button reattached. Is there a reasonably simple way to fix this?

I can't the seal out entirely, it's breaking off in chunks. How do I fix this?