@Zerjillo I have experienced the same problem, and have tried other sites but still experience the same thing. I'm not sure how to solve it but I hope it gets fixed soon.
If something doesn't work in the game, It's because the server is down READ THE OTHER COMMENTS!!! Ignorance is unacceptable, so please, stop asking questions that have already been answered. Please |+| this comment to stop the ignorant players from making further comments...
For everyone wondering, the reason you can't play campaign, sell, upgrade, and buy ships is because the server is down. PVP still works, but please don't make any more comments about not being able to play.