I have the same issue.
The game was ported from Renpy to I believe the Godot engine due to engine limitations, specifically the animations wouldn't work in Renpy. Think it was also because they wanted the file size to be lower.
If your referring to the Gallery Unlocker/Incest patch you don't, instead you download the game from this post
Huh, well I honestly don't know how to help you sorry. Though I do have one question, may I ask why your trying to run an outdated version? Or rather an outdated version that's after the port from Renpy?
Ah sorry I for whatever reason thought we were on version 11 right now (Projecting my long wait for an update). So how exactly did you try to run the game, did you just run the executable?
Hmm, do you know what localization setting your windows is set to? Trying to run games outside of the locale they were made in can sometimes cause them to go haywire. Other than that I'm not to sure what could be causing your problem.
Hmm, well I just redownloaded v10.3 via Pixeldrain and it worked. The only other thing I could think of is maybe your antivirus is blocking it for some reason? Sorry I couldn't be of more help.
