Error authorizing: invalid request / Spreadsheet is not accessible (via API)

[cathstyles]

Hello, I'm having issues that seem to have been reported and addressed previously. I'm a new user and can log in with Twitter no dramas but:

• cannot use the template because it's not shared
• cannot select from Google Drive – "Error authorizing: invalid request" (even after I added Timemapper.okfnlabs.org to my list of allowable popuppers)
• cannot use a published spreadsheet even though I followed the instructions to Publish to the web and copy the shared link – ("Spreadsheet is not accessible via API) So I've not been able to publish a timemap. Some help would be great!

[cathstyles]

^^ those issues were at work, where the IT is subject to a lot of restrictions. It's working fine for me at home.