Today I was waiting for my Tier III American Destroyer to enter battle when the game client crashed and I couldn't see the error window as the game just displayed a black screen and refused to minimise so I couldn't even exit through task manager , however I saw the error message just long enough to see that it was an " Unhandled Exception Error " . I restarted my PC ( Windows 8.1 ) and then launched the game again , now my Tier III American Destroyer is now showing as being permanently in battle and I am therefore unable to play it