"An error occurred while sending the request"

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Describe the bug
When trying to sync to Google Drive I'm getting "An error occurred while sending the request" and no synching occurs. This occurs when using the Legacy Oauth 2.0 credentials which used to work till now. When disabling the legacy credentials I get the previously reported "the app was blocked" by Google of course.

To Reproduce
Click on "Sync with drive"

Expected behavior
It used to sync fine several weeks ago until I tried it tonight.

Please provide the following information:

• OS, Win11
• Plugin Version [Both 4.0.1 and the original 3.0.1]
• KeePass Version [e.g., 2.59]
• "Normal" KP installation