Forgot?

I can't post or add new topics with Ninjaboard.

This can happen when using sh404SEF.
sh404SEF is NOT supported or compatible with Ninjaboard. (Ninjaboard handles it's own SEF URLs)

However, there's a temporary solution provided in this topic:
Ninjaboard vs sh404sef
Home FAQ Ninjaboard I can't post or add new topics with Ninjaboard.