I'm having a problem uploading multi-part ویڈیوز to my spot...

I'm trying to لوڈ اپ my fanfiction from YouTube into my spot but every time I کرائیں جمع the videos, it leads me back to the homepage. Does anyone know why?

[ P.S. The fanfiction is in the video, therefore I cannot post it unless I can figure out the reason!! ]