Loot all button (default button "R") causes "null refererence", why?

[Noisy Pants]

I have a dedicated server that uses the 7D2D RAT program to run the server, all the diagnostic lights are green and no errors pop up when I join my server. So far the only problem I am having is when players, including myself, try to use the loot all function to get loot from an container; at that this point the console drops down with a message regarding a "NullReferenceException: Object reference not set to an instance of an object". It could be something to do with the mods, I'm not sure - I will include a screenshot, please help. I will share a server log if need be, if all that info on them isn't a security risk sharing.

[Jugginator]

Either something to do with your mods (clearly causing issues with UI overlap) or you need to verify your file integrity. So, remove your inventory mods and re-verify file integrity to start.

[n2n1]

Yes, there were some changes in the operation of these buttons in the new versions, so the old GUI-mods will not be compatible.

[Noisy Pants]

the original author stopped updating this mod so i'm taking a swing at this and i've got the code updated yet the position of the window needs to be addressed - any tips?