@zombiedeathteam first thing I would do is uninstall, remove all the lingering files from the A3L directory. Download the A3L again. if that doesn't fix it then possibly one of the mods that are trying to be loaded for the server could be corrupted.
I don't know if its unrelated but I'm having trouble loading into any server, even ones I played on just this morning. The launcher tries to directly connect to the server but it just sits on its respective loading screen endlessly (Let it try to sort itself for over an hour). It started when I tried to play epoch, and now when I'm in the server list the mods I'd enabled aren't matching the server I started for.
I am having the same issue but on arma 2 OA. says yay but has not shown up on launcher, very frustrating and got lots of players asking us where is the server, many wont log in threw the game as they think its to hard to set it up lol 22.214.171.124:2601 any help would be awesome