Hello. I see a lot of mods (including one I created myself) that edits the cell (0,0) without any apparent reason. That also happened to me as well when I created my house mod, and I didn't touch that cell for nothing AFAIK. Where's that cell situated exactly? And it is safe to delete the changes done to it? (I mean, won't it affect the mods' functionality?).

Thanks in advance for the help

If you've added any "Persistent" references to the Tamriel worldspace, they'll be in 0,0. "Deleted" refs also like to hang out there and should be removed if present, then http://i.imgur.com/Pw8vV.png.