I'm not an expert, but needs to be repaired before you shoot it any more. One way I've been able to work epoxy between glass and wood laminations is to get a syringe from the drug store. (They look at you funny and you have to sign for them, at least in Wisconsin.) I mix the epoxy, get it in the syringe and squirt it between the glass/laminations. Then I leave it seep further into the crack until the epoxy is just about ready to set up. Then I clamp it. Don't know how long it will hold. I've only done it a few times, and so far all of the bows I've done it to have held up, one longbow more than 8 years now. Good luck.