Don't worry about- it's a small bug on my end, you're fine :)
You're on Chapter 7, there is no Chapter 8 yet. I will have Chapter 8 out in a couple of days with a fix. The only thing you are missing is it saying "Chapter 8 coming soon"
Basically, I accidentally forgot to check if you are on Sasha's love path before saying you need to complete her dates first. I added the check in the next update so you'll be able to continue as normal