Sorry to hear it. The losing of your mod is exactly what we have to worry about now on our play through. My only suggestion now is to jump over to the Discord channel. There are a lot of awesome folks over there ready to help. Most of the time if you provide a summary of the problem and your log, they can help. Just note though, if you are using the mod launcher, you log will be something like C:\7D2D\Alpha18\Ravenhearst\Ravenhearst_6_4_Edition\7DaysToDie_Data\output_log.txt
https://ravenhearst.enjin.com/ - The link is on the left hand side, as well as along the top. Good luck!