Can't launch my game

It’s been a few month since i played and after the update, i start it and there comes a message saying that i can’t in untrusted mode and some files being corrupted and talking about bundle\e965d0cb4a55e822.patch_015

Please can anyone help =(

Oh no! Have you verified integrity via Steam?:

  1. Right-click Vermintide 2 in your Steam library sidebar
  2. Select ‘Properties’
  3. Select the ‘Local Files’ tab
  4. Select the ‘Verify the Integrity of Game Files’ button
  5. When complete, close and reopen Steam