^^^^ this
almost all twinnies are a wonderful strong product that then has a lazy and dumb way of making them look pretty - ie: a plastic later that you can't paint, can't get laminating resins to stick to re-glass.
It is likely not fixable but there may be options - depending on where the delam is. Prob not DIY and the special products needed may mean it's not worth it too.
like most repair questions here - more info and pics