Sadly there isn't a discord for this. Usually for community support the comments and forums ( https://www.undertow.club/threads/released-slavebar-3d-breeding-adventure-hentai... ) are used
For bug reporting it's best to contact me directly via email also providing the bug report
To create a bug report : Tap F11 in-game at the bug point > copy the generated bug report (from the game’s folder) and email it to me (+ include a small description of the bug and steps to reproduce it) [ nymphokyun@gmail.com ]