Do you know what stripping a bolt means? You are stupid.
They are just stuck dude, Try to loosen them evenly a little at a time, but if that doesn't work, then you are gonna have to cut them and get new bolts.
^thats how you strip them, but you can test your luck and try, just get a good, STRONG allen. if they wont move or they strip, cut them in the middle and get new ones.