I have no experience with Vilayer servers but lots with MSO - however I believe your issue is with how the mods are installed. You need to make sure that the .bikey files for each mod are installed on your server under \ArmaGameDir\Keys.
If your only addon is Clafghan then find the .bikey file for it (if you use Six-updater check the folder there should be a keys folder there), and uploaded it to your servers \ArmaGameDir\Keys folder
We have all of our addons keys within the main DIR under keys, but for some reason it doesn't seem to recognize them as such. The server is always red to us if we come in with all of our addons activated.
Having issues with hosting Arma 2 MSO on dedicated server
in ARMA 2 & OA - Servers & Administration
Posted
We have all of our addons keys within the main DIR under keys, but for some reason it doesn't seem to recognize them as such. The server is always red to us if we come in with all of our addons activated.