Unable to Compile

Hi,
Running Rust + LGSM with Carbon installed.
All plugins are running for me with no issues, but I'm unable to get Trade working.
Upon initialization i'm getting this:

1. The type or namespace name 'OnlinePlayersAttribute' could not be found (are you missing a using directive or an assembly reference?) [CS0246]
     (Trade 10 line 63)
(Filename: ./Runtime/Export/Debug/Debug.bindings.h Line: 35)​

And that's it, tried to disable Carbon, update it, disable some other plugins and leave only this one (i have no escape, thought maybe it's conflicting) - but seems it's some issue with - https://umod.org/api/uMod/Plugins/OnlinePlayersAttribute

Any help would be appreciated, thanks.
E.

Did you find a solution? Got the same problem with Carbon.
The only plugin who doesn't work