SR_Gameserver fatal SetAddCountByPublicQuest (1108, 0, 0)

02/14/2021 07:07 goodooneo#1
the quest with 1108 id was added few days ago and it has been working without a flow, no bugs or any problems reported.
but today I get this error in gameserver window :
fatal SetAddCountByPublicQuest (1108, 0, 0)
and it's repeating every second!

any idea or hint about what this error means? what is that "Count" mentioned?

note : there is another quest with the same lua script for another MOB, and it has been working without any problems for more than a month