Stuff keeps disappearing

[nani17]

I've spent a while trying to copy white run castle and make it my own but when I test it stuff disappears inside and when you go outside the entire building disappears.

 

Have a look at it and see what you can do please if you don't mind because it just wont work for me.

 

to test type coc aaadovahall backup your saves first because when you go outside it saves.

 

 

http://www.mediafire.com/file/b9399nhq3cedkf7/test.esp