Style manager - old classes still remain after elements are deleted

Hello,

I’m going to make a new design for my website and I have removed some collections, all of my interactions and pages. I also removed symbols. My pages are now blank. However when I look in the style manager there are still references to old classes etc.

I would like to start blank again…

Can some one see if I have missed something?


Here is my site Read-Only: LINK