NullReferenceException at DoorManipulator.IOInput
In response to FuJiCuRa ():
Also nope. I got no related code inside this.
Right ok! Wrote to my host also, they dont have a clue what is that for problem! Trying to blame oxide. 
The error would either be from a plugin, Rust, or mixed Rust versions being used; Oxide doesn't touch any of the referenced code in the error. Your host may also be using an old build, causing mixed Rust versions, but generally errors like this are not something hosts will know how to fix or be able to help with.
In response to Wulf ():
The error would either be from a plugin, Rust, or mixed Rust versions being used; Oxide doesn't touc...
Ok thanks! I think its definatelly problem with host. As im using exactly same plugins on other host, all working great!
In response to Explorer ():
Ok thanks! I think its definatelly problem with host. As im using exactly same plugins on other host...
May want to double-check that you're on the latest build of Oxide and fully updated with Rust.
In response to Wulf ():
May want to double-check that you're on the latest build of Oxide and fully updated with Rust.

Build Date: 10/11/2018 09:12:32

Unity Version: 2018.1.4f1

Changeset: 29249

Branch: release

Oxide.Rust Version: 2.0.4068