I solved it, I am noob, all I had to do was delete the files that have been duped in the addons folder, Thanks for your help!

That solved the first error message but It still doesnt allow me to join the server, it has the same error.

When I click to join a server I get this message ;
http://prntscr.com/4hdhcg

After I click ok It proceeds to join me into a server until I get this next error message which stops me from joining the server.

http://prntscr.com/4hdghk

Pls Halp