need help on lamborghini countach!

I am on was on step 322 when i realised that the windshield wouldn’t fit because the base to put it on was blocked and then i also realised it was bending. so i went back to step 285 where i put in the base and it just doesn’t seem to do anything different no matter how many times i try putting it back on! any idea how to fix it or ways to help? i am now stuck on this for a while and i can’t figure it out!

what seems to be the problem is that it doesn’t go over the red part and is therefore not able to connect, but idk.