Error joining?

[xcox 0]

I've never had any issue joining an exile server before until now. Everytime I try and join this server i get this error.

You cannot play/edit this mission; it is dependent on downloadable content that has been deleted.cup_a2_editorobjects, cup_a1_editorobjects

 

I tried unsubscribing to the files on steam and repairing them  but nothing works. I have all required mods it asks for when joining the server. 

Does anyone know a solution to this error?
 

[Psymon 1]

That's specific that that 1 server?

[BetterDeadThanZed 1004]

That is a server side issue, not a client issue. It also shouldn't stop you from joining the server.