Error while compiling: AdminRadar.cs(1060,77): error CS1061: Type `ListHashSet<BasePlayer>' does not contain a definition for `Find' and no extension method `Find' of type `ListHashSet<BasePlayer>' could be found. Are you missing an assembly reference?
(Filename: C:\buildslave\unity\build\Runtime/Export/Debug/Debug.bindings.h Line: 35)

Its show old version and latest version

I use modded false from oxide.cfg
but another Plugin is works

Sounds like you are using an old version of the plugin. Please update to the latest. That error isn't possible if you are using the latest version of Rust server and this plugin.