Valda's Spire of Secrets: Player Pack vs. Valda's Spire of Secrets

Hi, I have the book "Valda's Spire of Secrets," and I want to buy it on D&D Beyond so I can use the classes there. However, the book is listed in the D&D Beyond Marketplace as "Valda's Spire of Secrets: Player Pack." The description mentions subclasses, species, etc., but it doesn't mention the classes. Are they included in the book?

There are new subclasses, but no new full classes added to D&D Beyond.

I read the description again, and there are even more differences. The Players Pack only has two subclasses, while the original has five.

There's actually an article detailing what the players pack contains: What’s Inside Valda’s Spire of Secrets: Player Pack?