Ford Fiesta 1.3 Trend closure

The thing is that the driver's door does not open either inside or on the outside, with a key or without it, that of the co -pilot if I can open it but the closure is "caught" opening and closing all the time, I thought about disassembling the pilot's port to dismant No place and I don't know what a fuse number is it, I don't find it online either, can someone help me?