System error -2146697208

99% of the time, when I attempt to launch the game I am met with this horrible message;

A system error has occurred: -2146697208.
http://frontier.ffxiv.com/arr_win/in...=2015-05-23-09

I can get onto the game but very rarely, it takes maybe 45minutes of loading the launcher repeatedly just to log in, once I log in there's no issues but it's just this stage that I have major problems with, is there any way to fix this?

Thanks.