I'm experiencing a really weird client launch bug

The client waits until I start typing my password to prompt me that it needs to restart and upload the latest patch. And when the client restarts to download the newest patch, it does nothing for about 10 seconds and then gets frozen and says "Updating... ETA 0 Minutes... 0.0 MB / 0.0 MB" for hours... What's going on with my client? It worked fine yesterday. I also included a Pasteboard image of my client bug if that helps at all.

Thanks a million in advance for any helpful responses.