I didn't download anything you guys mentioned, instead:
I changed this line
compatible_with_warband = 1223
to this
compatible_module_version = 1223
in the second line of module.ini in the cRPG folder.
It works!
(No hacking with steam, I only did this change after I couldn't start the game)
Cmon, nobody want to test it ? It solved the problem for me without any other method:) it was 9 seconds,
and works with the newest warband