Game broke for me when your dad dropped you off at the school, during the scene where he was texting you goodbye and brought up cassie staying over, after I finished the text convo, it showed the notification was clear in the chat but the phone kept showing I had a notification and I had nothing for anyone else and cant move forward. Other than that, enjoying it so far. Let me know if there is a fix.
This bug is fixed in the coming update, but for now you can google how to enable the console in renpy. Follow the steps, then shortly before the end of that text conversation, open the console and run the below command.
messageCount = 1
Its important that its exactly like that. It's case sensitive. That should let you progress.