Don't quite understand what happened here. What caused it to issue so many tickets? Can you provide more details?
I have not seen any such issue reported before.
You have two options here. In the backups\0\ folder there should be time stamped copies of the users.bin file. You can choose to restore a copy before the issue began.
Alternatively, if you want to remove tickets, then in the chat tab, you can hit the "?" golden icon and input a negative number to remove points from all online users.