How was the folder named wrong. I am having the same issue. The mod runs fine on my computer but not on our dedicated server.
I have placed the @CBA_A3 & @mcc_sandbox folders in the Arma 3 Folder of the server.
I have placed the keys for both mods in the keys folder of the Arma 3 folder.
1 copied the init code and placed it in the init.sqf of the mission I created.
I have tried to place the MCC module and sync it to a player.
please help.