I'm getting the following error when I install & active

Hello, I'm getting the following error when I install & active Snapshot Pro plugin on Chellie.com/blog.
ERROR: Cannot create snapshot folder. Check that the parent folder is writable /home/users/web/b2774/ipw.chelliec/public_html/blog/wp-content/uploads/snapshots

The permissions for the blog folder & all sub folders are 777 right now, and I manually created a snapshots folder.
I've already granted support access. Thanks for your help!