hi guys, i have a problem whit the ships, because i cant build them, because when de construction finishes the ship Shipwrecking

Sounds like you are not building in the main river channel.

Double check where trade ships come from, then make sure it's continuous river back to there.

If you can't find it from that, tell us which map you are on. But I'd bet that's it.

Your Shipwright needs to be built on the main river way (aka, where the river entry and exit points are located), inlets are not allowed. This is the same for all coastline buildings, like docks and wharves, which need access to the main river route.

You are probably building wharves in tight inlets, so when the shipwright completes the ship, it just immediately gets destroyed because it can't reach its base. Delete the wharves and place them on the main water route.