First of to start I tried installing the game through the itch.io app as that's where I keep all of my games but it wasn't allowing it to be downloaded and installed due to it "coming from a 3rd party website" I did just go through chrome and get it that way with no issues but just incase anyone else likes to play games through the itch.io app.
I was experiencing the problem of the route's getting cut by this error screen and it's not just shayan's route I played through them all and when it gets to the part for you to run/hide it cuts off with the error screen.
And a little thing I caught in Jadu's route is that there's a part where he talks in response to the food we grab that I notice it shifted the reading to the next pan (like when you click and it goes to the next thing) but before that it showed part of his voice line and the voice line play through like the whole text was there.
I also had it in Jadu's and Shirin's route that on chapter three then the bad happens (don't want to spoil for anyone) That both there voice lines and maader's don't play.
And like how myuhinny said faranak route was cutting off when you approach her.
and to the creator no hate, I understand these things take time and there's bond to be slip ups it's completely human.
I hope this info helps and side note I love all of the lovely vamps so much and an amazing job on this game I'm really excited to see where it goes!!