Describe the bug
Every click on door, fence gate, etc.. Error in console - PlayerInteractEvent
Error not appears if you are trying it in wilderness (outside of any claim)

To Reproduce
Steps to reproduce the behavior:

1. Create claim
2. Try to open/close door or gate in claim
3. Error appears in console

Screenshots and LOGs
https://gist.github.com/Krosta8/05f00b02fee066428378e225038f1fe2

Server and plugins versions (please complete the following information):

• Server: Mohist 1.12.2 build 466
• Plugin Version: RedProtect-7.6.6-b357-Universal.jar
• Java Version: Java 1.8

Its seems you removed the flag smart-door from flags configuration...

Oh, sorry, didn't know, that this should caused this. I disable this, because I have mod in-game for this feature and I was not sure about compatibility between your plugin and the mod (MalisisDoors)
It looks like, it is working. Thanks :)