UPDATE: I have been able to log into the game finally. From another post a support person suggested reinstalling the Impulse client from this link and that seemed to do the trick:
I have deleted this file, to no avail. I also changed my profile name so that it no longer matches my login, as someone suggested.
I still cannot use the game I paid for.
By the way, the game has never crashed for me, I have never been able to log in to multiplayer even one time. I have only played single player (with no crashes).