Okay, this has probably been asked, but I messed up my elevator instances, so they're pretty much useless. I tried verifying my game cache after I deleted the turbine_elevator folder, but it said: "1 files failed to validate and will be reacquired. It does not re download the file. I tried doing this several times, can someone help me?

Did you tried to backup your vmf files and reinstall Authoring Tools?

See pm