change .nfo file

[DZDZzzZ]

I created .nfo file through scrapping in Jellyfin. And I found the image path in the .nfo file is too complex to organize image. So I tried to changed the image path to a new path in nfo file. When I refreshed the metadate through scan for new and updated files, the poster and actor images will not be displayed in Jellyfin. And if I tried to use other methods to refresh the metadate, in .nfo file, path of art would disappear, like </ actor>,and the path of actor would become the previous path. 
So is there any way to display a picture of my new path?
Thanks.