The first time I bake a 12in, round and I forget to spray the sides! Hello! Im a dork.
Anyways, now my cake is broken around the edges (which I could fix with BC) and cracked in the center (the crack goes around the center of the cake like a smaller circle) Is this going to cause me problems in the long run?
I have it in the freezer now but I am afraid that once I get th cak filled and crumb coated it will settle and break apart. Any experience with this sort of thing?

I have had the same thing happen and I found working with a frozen cake is the best. I put BC in the crack and "glued" the broken pieces with BC. Then I put extra BC on the sides to cover the mess. Then covered in fondant. You'd never know. Just make sure you roll your fondant quite thick. I found using store-bought, as opposed to home-made MMF better in this case. Good luck!

Yeah it happens. That's why bc was invented. And next time, run a knife around the edge of the pan to loosen the cake. I'll bet it will be fine.