I don't think fanfics are allowed on Wikis, just links TO fanfics. What problems are you having? I have a friend who writes on FFN, so I can ask if they know what the problem is.

This user @Hulk10 can explain.

Fanfics are not welcome on this wiki per my recollection.

I recently signed up for Fanfiction. And I cannot post stories there, basically.

Give it time

I spoke to my friend. They're not having any issues.