Worked great until recently – Anime boxes Review

Now about 2/3 of pictures won't load but instead flicker a lot at the loading popup. Also despite having proper login info for gelbooru I'm told I have invalid login credentials. Edit: having applied a fix to this issue I've now run into the problem of the app not loading thumbnails and crashing when looking at gelbooru pics. I also get a message saying I'm not allowed to view these images.
Review by Kushmeyer on Anime boxes.