After taking a clear quest from Jen, I went to the house and click on the exclamation mark. The quest didn't start and instead the logs popped with the aforementioned error. I have tried to abandon quest and start a new one the next day but I couldn't even click on the mark.
Day 19 so far. A21 stable, windows 10 using steam. Having SMX UI and Craft From Container mods (manually installed). Below are the logs
Mono path[0] = 'C:/Program Files (x86)/Steam/steamapps/common/7 Days To Die/7Day - Pastebin.com