Hi bengman,
Thank you for using Cloud Storage Manager and for taking the time to clearly explain the issue; it definitely helps.
We identified the conflict with Fluent Forms during the weekend that affected email notifications and the Google Sheets integration after the recent update.
So we have prepared a quick fix that has already been updated in the latest plugin version.
Please update to the latest version from ww.wp.xz.cn and check if the issue persists on your end or not. Everything should now work as expected.
If you notice anything unusual or face any further issues, feel free to share your feedback.
Thank you.