Missing characters

ehm I was setting up my favourite characters list trying to recreate what I had on mal but then I realised that the characters for the anime Working Buddies arent set up so I couldnt add the character from that series which used to be in my faves so... A. does anyone know if you can fix this as a user and if so how? or otherwise B. does anyone know who to bring this to get this changed? Thanks beforehand