"You cannot play/edit this mission it is dependable on content that has been deleted..."(This happens for every map except for Chenarus)

[Steptornetta 0]

Hey guys

I was wondering if anyone could help me with the error message. I use DayzCommander and I have downloaded Namalsk and other maps off of it but whenever I try to play them I get the same error message over and over again as stated in the title. I have Dayz and Arma II and Arma OA up to date as I can play Chenarus and all servers just fine. I know there are other forums about this same error message but I have trouble understanding the explanation and I have tried what they say but nothing seems to work. Thankyou for your time!