"400: Google Docs request failed."

cxmarea

Hello - I keep getting the following message when i try to edit any Zotero citations in Google docs:

400: Google Docs request failed.

{
"error": {
"code": 400,
"message": "This operation is not supported for this document",
"status": "FAILED_PRECONDITION"
}
}

Things I have tried so far:

1. Update Zotero desktop
2. Uninstall/ reinstall Zotero desktop and Chrome Plugin
3. Clear cookies/ cache/ browsing history
4. Restart Chrome and Restart Zotero.

What else? This is for a large literature with over 130 citations. Other papers are still working fine.