Contact camelot10, he need to update profiles
(you can also fix it yourself: https://wrobot.eu/bugtracker/just-updated-and-got-errors-in-logs-r848/?do=findComment&comment=4307
With notepad ,replace:
Quest.QuestsClasses
by
Quest.QuesterCurrentContext.QuestsClasses
and replace:
Quest.NPCList
by
Quest.QuesterCurrentContext.NPCList