Hi and thank you for sharing your issue.
The extension requests very basic permissions in order to perform its operations, such as the storage permission to save your extension settings and the downloads permission to perform mass file downloading.
You can check the extension permissions in the Privacy Policy: patreon.cosmious.com/privacy-policy.
If your mail provider is Microsoft (e.g. live.com, hotmail.com), please use another email since the Microsoft emails have known deliverability issues.