It happaned again
first time
the second time was today, after ninetails i went to do the challenge and got same error message.
the only thing that happened is that i logged off because i barely made it to the register part and had to go make dinner for the family so i closed the client, and thinking back i think i did the same thing last time, but didnt realised it could cause problems.
does logging off after registration and logging on later on make the error? if so may also be causing problems to other people that crash in the meantime?
PS: again tryed the game doctor function, clear the cache, went with browser version on both firefox and google chrome, and the error persists