This app is amazing just one annoying thing

Ok so over all this app is just amazing I love the pictures and how it is set up like a social media app because I’m not allowed to have those except one thing that has bothered me ever since I’ve been experiencing this problem, when I try to import a picture and I try to post it, all I get is invalid response and the photos are not inappropriate since I’m only a kid they are just suppose to be regular anime girls and the clothing isn’t inappropriate it tried not to write a review thinking maybe the problem will get better but I have two pictures that are by the same girl on Pinterest and one of them is considered an invalid response which really ticks me off because nothing is inappropriate so if you could please fix this problem it would mean a lot to me thanks!!!!!!

emoji_miss? about Recolor - Coloring Book, v4.2.4