Hi Anne,

There is a known issue for this specific error, where new software was released on 13/03/2023 to correct the issues.

Known issue: Solution for "Object reference not set to an instance of an object" on Release 6.0a

Should the issue still persist after checking the requirements, and installing the new software, please log the details of your enquiry* with the Customer Support team.  Click here to view the contact details.

* Be sure to inform them that you have posted your query here on Sage City.