Hi thunea
I do not understand why this should happen for you. The server is working OK I am certain. However if the problem persists I can send you all the missions I have installed by "WeTransfer". This is a FREE service for sending large files/folders. If you send me your Email address via a Personal Message (not as an open post) i can send them to you. All you would then need to do is to unzip the missions into your "Missions" folder in game.
Regards,
Angus.