Heres the console...

Looks like your server isn't fully updated with Rust's files, particularly UnityEngine.CoreModule or others that depend on it.

I run the steam command and the app_update 258550 

it says already up to date?  Any idea on how to force an update? 

Did you update with the "validate" option?

Yes, im going to make an entire new folder and start from scratch , see if i can then get that running then drop oxide on top after

Merged post

Just incase, what is the command for the validate option?

steamcmd +app_update APPIDHERE validate +quit

Thank you, I need to donate to your cause we'd be lost without ya!