Solved Cupboard authorization doesn't work for owner

Hello there guys,
I have a problem with authorizations... as an owner of the server, I can't authorize myself in cupboards.
It was okay in the beginning (two months ago), but after some time, when I added some plugins, it just broke.
My friends are in default group and don't have any problem with authorization.
I solved it by adding plugin OwnerEntity and authorizing myself via command, but that's a little bit annoying and I hoped that new Rust and Oxide server versions could fix it. Nope...
There is the list of plugins which we have:

 

I finally had some time to test all plugins and I found the plugin which cause this, it's plugin MasterKey... >.<
Ou, it's your plugin Wulf...
I think, it happens because the plugin automatically and temporarily authorize admin in all cupboards in range.
I'm not abusing my admin rights, I don't open others doors, because I can, I just added this plugin for prevention.
So I have to just disable master key with command and everything will work fine.