SAP automation testing prompts ‘catastrophic failure’

When I was using Python and SAP GUI Scripting API for automation testing, I obtained the GuiTableControl control and tried to continue with operations, but found that calling any method of the control would result in a “catastrophic failure” error. Later, I tried testing with C#, but the problem persisted. Can you advise me on how to handle this? The SAP version I am using is 760.