I have created a test profile in Google, to make the exact process I did before for the original account, in order to share the workflow with you…
The problem is that THERE IS NOT WORKFLOW, since it´s not created by SheetGO, since the error we are dealing with!
I guess that the best way to help, is you to create a new sheet in Google… and simply try to add a BASIC workflow, by the file I already shared…