CA Asset Portfolio Management repeatedly emails that export failed

Products

• CA IT Asset Manager
• CA Software Asset Manager (CA SAM)
• ASSET PORTFOLIO MGMT- SERVER
• CA Service Management - Asset Portfolio Management
• CA Service Management - Service Desk Manager

Issue/Introduction

Notifications are being sent from CA Asset Portfolio Management every two hours to customers.

Would like to stop this. 

The Export was working previously.

Screenshot of Notification

<Please see attached file for image>

Text of Notification: 

Notification from Asset Portfolio Management 

Export Request Results 

ITEM, VALUE 
Name: IT Assets are in an UNKNOWN status 
Id: 1000018 
Description: IT Asset Manager to investigate assets in UNKNOWN status 
Status: Unsuccessful 
Atttempted: 24/02/2019 2:25:59 PM (UTC) 
Exception: System.NullReferenceException: Object reference not set to an instance of an object. at CA.Common.Web....... (Message goes on - see screenshot) 

The export request could not be completed. No output results were created. 

Please contact your Administrator for additional log file information. 

Environment

CA Asset Portfolio Management (CA APM)
Formerly CA IT Asset Management (ITPAM)

Resolution

Automated script was running every two hours and was generating the message.

A "scheduled task" was found under a different account, which was hidden from most users.

This has been stopped.

Note that the part of the message "IT Asset Manager to investigate assets in UNKNOWN status" was coded into the script. 
The key part of the message starts from the "Exception".