Luxurien

Hello, I'm pretty new to this but my problem was not fixed in the FAQ, so I hope this is the right place to ask for help. This is a problem I'm having in the Archives for my story "The Building of Iah" in the "Naruto Fanfiction" subdomain. I submitted it from a mobile device and was unable to choose multiple tags, I ended up deciding to come edit these tags later. However, when i tried to change them from a PC later I was unable to edit them! My story is now hidden for "improper tags" and I was told to fix the problem - but I wasn't able to figure out how . Any advice? Another problem I'm having is all of my stories take place in an alternative universe but still involve the canon characters (for example, a modern AU). However, I cannot tag characters either. Am I doing something wrong? How do I fix this?