Client version error

Just when I want to take a break from work, Blizzard has failed me.

Patch 1.5.3 has brought much inconvenience to the Starcraft community.

I cannot log on to the NA server, but I can log on to the SEA server. This is not just an individual case apparently, others have the same problem.

The following error pops up when I attempted to log into the NA server.

While I thought I can just go onto the SEA ladder instead, it fails me again. Everything goes blank as shown below.

Disappointing.

What do you think?