Same problem here.
I passed the illusion stage, had over 20 wins and 20 losses and have been part of this community for 3 days.
I also get the zero warning and the syntax errors. I've been able to play till I have to buy a creature.
Edit: Rex Thunderbolt (ID:130471) is my character
Edit2: I can't continue because I'm stuck on the creature buying
Error: SyntaxError
Err description: undefined
Err number: undefined
Err message: invalid flag after regular expression
Ajax response:
<br />
<b>Warning</b>: Division by zero in <b>/home/magicdue/public_html/conf/config.php</b> on line <b>478</b><br />
parent.dlgApplication('1_0x-4_2','')