Maria's mission isn't tied to Lin's last event. I need to know what level the character giving you issues is. If it's Maria, and her level is 30, this is a known bug that has been fixed in the latest updates but wasn't caught in time for v0.17
151 days ago(-8)
Yeah, as I said, Maria's level is 30, this is a known bug that wasn't caught in time for v0.17. You can fix this by cheating her level up 1