Character rename

I actually wanted to rename a character named Robin to Robin (Orange girl) in the web series Glitchtale Episode 4, I had submitted once and he would be approved but it didn't change anything, I checked again a day later and it still didn't change anything.
I corrected it again and then got an error that it was duplicated and that it was still being checked (https://contribute.imdb.com/contribution/220611-181814-377000/?ref_=ra_his_wa) and that took 5 years days.