To recover my collections and playlists i used: webcache.googleusercontent.com/search?q=cache:PutYourUrlHere&strip=1 1. Seach your profile (or your profile's

To recover my collections and playlists i used: webcache.googleusercontent.com/search?q=cache:PutYourUrlHere&strip=1 1. Seach your profile (or your profile's collection, playlist etc.) with Google. 2. Don't click search results, just copy the URL of your profile 3. Replace the text "PutYourUrlHere" with the URL you copied. It is important to include "&strip=1" at the end because it opens you the text version of the page, otherwise it won't work. My cached profile page was from 28.3.2015, so at least I managed to save most of my data. groovebackup.com was not as useful as this approach.