Do I delete prod.cs or rename it?

Huh? I don't know what prod.cs is or how it has anything to do with EntityOwner.

Prod is a completely different plugin.

The command in this plugin is "/prod" but it has nothing to do with the prod plugin? Now thats confusing lol

https://oxidemod.org/plugins/prod-who-owns.683/

Both plugins have a prod command, you can't use both.

ok so is the old plugin outdated and should it be deleted and this be used or what?

Up to you.

I see there is also this plugin https://umod.org/plugins/find-owner

so 3 plugins that all do the same thing and all 3 have the "/prod" command

I guess i'll stick with the one from oxide since it has always worked for me