545 - Can't log into Curse Client

What steps will reproduce the problem?
1.  Redownloaded Curse Client v4 - OS X and installed
2.  Tried starting it
3.  Got this message:  The operation couldn’t be completed. (Server returned an invalid result. Please try again in a few moments. If this persists please file a support ticket. error 0.)

What is the expected output? What do you see instead?
The expected output is that the program would start. I get the message mentioned above: The operation couldn’t be completed. (Server returned an invalid result. Please try again in a few moments. If this persists please file a support ticket. error 0.)

What version of the product are you using?
Using: Version 4.0 Alpha (4.0.0.212)

Do you have an error log of what happened?
No.

Please provide any additional information below.
I'm a premium user, if that makes any difference to it's settings. And, as I have paid for the product, any assistance in resolving this issue would be great appreciated since I don't want to waste my money. I had also stopped playing for a few months and had uninstalled both my WoW files and the Curse Client. When I reinstalled the Client, it was the new and updated version. The old one I was using back in the summer worked fine for the most part.
Thanks for your help.

User	When	Change
Ackis	Tue, 05 Jan 2010 23:27:12	Changed status from New to Duplicate
Ackis	Tue, 05 Jan 2010 20:13:22	Changed status from Invalid to New
Ackis	Tue, 05 Jan 2010 20:12:54	Changed status from New to Invalid
adaroundtown	Sun, 27 Dec 2009 13:11:30	Create