Stop scheduled "send as attachment" with deleted reports

Hello, I have scheduled the "send as attachment" for reports, and now that I have deleted these reports, it seems like it's still trying to send as scheduled but with the below error message.

We were not able to send your email "xxxxxxxxxxxxxxxx Report" due to an unexpected error.

The Smartsheet Team

How can I stop this? I have just deleted the reports from "Delete Items", hopefully that helps.