Email templates not being received

Good morning

I was notified today that our email templates that we send to customers weren’t being received by multiple customers. Looking at the logs, I"m seeing the this error occurring for some of the entries.

“date”: “2022-04-07T13:57:26.324Z”,
“type”: “fn”,
“description”: “To:”,
“connection”: “11e18181-53d2-497a-96ac-23580795552c-LocalUserDatabase”,
“connection_id”: “”,
“client_id”: “ngVpJ1tDZzRkvQI52iPK2YEd2x3P14Go”,
“details”: {
“email_type”: “reset_email”,
“to”: “”,
“error”: “The security token included in the request is invalid.”
“log_id”: “90020220407135731396447596606256580344327166941177315426”,

We use an aws s3 bucket to store the json whenever we send out emails, so I’m thinking this is where this error is coming from. However, the email template will state that the email sends successfully. Even more confusing is that there are some emails that are sent where the template works as intended, no errors occur in the logs, but there’s no data saved in s3 that the email was sent (and our clients have verified that they haven’t received their emails).

So ya I’m at a loss as to where to start and what is causing this. I couldn’t find where aws credentials are set in auth0, and I’m wondering if there’s more to it then that due to emails not being sent even if there’s no error written to logs for certain ones?