Soft lock crach

pls help, i’m stuck, i go to a island. “terres pourpres écorchées” in french scarred purple lands with google trad. at the south of frissonde. instantly when i try to land on the island my game crash. i try to relog and crash again. i can play with the other character but not with my main cause i cant leave the island. the error is

105 : corrupted data found. Please verify game data using the launcher menu or reinstall the client

and under the same message but in german.

anyway reinstall the game is pretty impossible for me i got a really bad connection it took me about 2 day for it…