Well, it has been 2 weeks since you have submitted this question. Is it working for you now? If not then report it as a bug because characters are working just fine for other people, as mighty said. it might be your Internet connection.

Same here, This morning i got a little of spare time and decided to check out my account and then.. only animationsource hub was active

One of my Trading clients gave me his payment through pm today claiming that the site didn't let him upload his pictures so it'd not our internet connection as we are way too many people,. and its not only affecting characters, i tried to send both today, i had characters and images made for long time ago and when i tried to upload them it didn't allow me to,

and same with charactersm, so it may be a bug or probably any of the webmasters is chaning something, but wlel i'm sure this is something temporal, so my advice would be just report the bug

I wouldn't know for sure, I don't send in characters. Maybe it's your internet connection. It could also just be the site, try again later. If that doesn't work, report the bug.