Email Failed

[coggeek]

Hi mates, help needed.

I am getting following error in schedule reports.

We were unable to send a message to one or more recipients. Please contact your administrator.
Subject: Send failed: Daily Transaction Summary Report (Dated: Sep 1, 2018)
Date: Mon, Sep 3, 2018 09:31:25 PKT
Error Message: CNC-DS-0001 The following Delivery Service general error occurred: Timer already cancelled.

i am also getting report in email but after report email i got the error email without report.
please help me.