[1.11] OOM & bug: error on children marriage - i thought i was running on 1.19. Feel free to ignore

I have notice that there is some bug with the marriage for my children.

I have 2 sons with marriage to my grand-daughters. It ended up with duplicate production of my grand-daughters. Additional error is that the duplicates cannot be remove from group, and they are stuck to the ground unable to move. The error file is known as twin01 under saved games folder.

I have attached my CTDs as well all due to oom error. Pls find them under crashes folder

https://www.dropbox.com/home#/Public:::