Thank god other people are having the same problem, I was worried it was something my end! Absolute carbon copy happening here too. Tried all the obvious fixes; restarting PC, updating wRobot, deleting everything and re-installing, re-downloading off website (which also seems to be acting odd? Occasionally getting page timed out).
If I try to open wRobot, 9/10 it will stop responding and require you to end task in Task Manager. Takes a very very long time to boot up. If I manage to boot it up, the 'Play' button to start the bot is just like a dead link and does nothing, error message stating along the lines of 'Something wrong with Wrobot sever / Firewall settings'.
Hopefully this is a simple fix!