Dear Geez,
i've stripped down all my inventory and clothes and the problem was solved. I think there was a bug in one of the items. No more problems since the solution.
regards
Fox1

foud a solution: ditch all your gear, including clothes and shoes and then retry to open a door. It worked with me

same problem here, i've already deleted the dayz folder from documents but the problems remains, now i'm locked up in my own base