TimeMapper is not allowing access to Google Spreadsheet

[ciannicelli]

When I attempt to create a timemapper anonymously, and choose to select a spreadsheet from my Google Drive, I get an authorization error message.

When I sign in using Twitter and attempt to select a spreadsheet from my Google Drive, it tells me the app is blocked.

[Juanaloga]

Maybe "timeline issue" can help to resolve this problem. " Google recently changed something about their Sheets service which is causing many people to run into an error when they are making a new timeline"
https://knightlab.northwestern.edu/2016/11/21/a-google-spreadsheets-change-affecting-timelinejs-users/
I did it and it worked on TimeMapper. I published my googlesheet and copy browser Url. Good luck!