I think we have a topics here how to update electrum wallet properly, how old version electrum wallets are weak in security, a lots of example how people lost their funds due to Electrum. Sadly, julerz12 must have missed all those cases and did not learn from other people experience. It will be an expensive lesson for bounty manager. His only hope is to pay funds he owe to signature participants from his own pocket. That might save his reputation. Also, those who really support julerz12 as his favourite manager and those who care about julerz12, might help him with that, as they can send him donations.

Feel bad for projects whos signature campaigns were involved. That is a hard hit on their reputation also...

Good luck!