Upon starting up the launcher (mac version) on my computer, it immediately cancels out, giving me the error "Unable to complete version check. [30605] [20446] [403]."

In addition, the first time I attempted to start the game today, there was a second pop-up window stating that this game was "incompatible with my computer." I have not made any software updates to either the game, or my computer, since I last played.