Oh, thats an http connection error. I will fix this on new path by adding a button to refres the captcha. So sorry you didnt scored your dungeon. If you want I can add your win manually to the database. I need your user name for that.
You don't need to stop/pause the game because its turn-based. Ive implemented a "ping" feature to ping the server every 5 minutes to prevent loosing the session. I will check if this is working.
Btw a new patch is coming in few weeks and I will add a button to refresh the captcha.