So im currently an owner of a server, and having the issue when loading in the mod "vanish.cs" that even though im set to owner/admin the mod still says restricted, ive tried searching through the config file and the cs file to see which group is currently set to. and i cant seem to find anything. ive tried wiping the config and cs file to nothing and reinstalling it and still nothing.

What exactly says "restricted"? You need to assign the permissions listed on the plugin page for what you want to do. You can see a permissions tutorial here: Permissions

Most plugins do not use "owner/admin" from Rust, they use permissions.

ive assigned the mod to a group "admin" but it says this error https://imgur.com/a/02j9q3H

If you are "owner"/auth level 2 in Rust, you are automatically added to the "admin" group in Oxide when you connect to the server as such.

If you want to manually add yourself to that group, you can do so via RCON or the server console:
oxide.usergroup add NAMEORSTEAMID admin

Once you've done this, you can grant the permission desired to the "admin" group:
oxide.grant group admin vanish.use

If you want any of the other "abilities" from the plugin page, grant them the same way.

ive assigned myself into that group and it still throws that error. ive tried clearing myself off it and added it again but still gets the same error

What were the EXACT commands you used and steps you took as well as the replies?

Only reason I can see it not working, is if that Steam ID doesn't match the user you are currently logged in as. Have you tried granting to your user individually?

Looks like you have vanish.indefinite granted, which disables the command usage. Revoke that and you should be fine.

oxide.revoke group admin vanish.indefinite

that worked. Thank you :) 

I can't toggle off until unload plugin , and server says "server is restricted. contact Owner..."

SharpSabre

I can't toggle off until unload plugin , and server says "server is restricted. contact Owner..."

Please see above.