Hi Ricardo,
It's difficult to know without seeing it, but I would say it sounds like what you're trying to read can't be recognised as a table. The phrase makes mention that it can't find a grid pattern (a basic table structure), which may mean that even though you can see a table, it's not presented as one in the code.
It may take some trial an error with things like using other spy methods, using the UI Automation Navigator (found by clicking the arrow next to Identify) or perhaps spying 1 cell at a time and seeing if you can move throughout the table by changing the Ordinal/Match Index.
I hope that helps.
------------------------------
Ben Lyons
Product Consultant
Blue Prism
UK
------------------------------
Ben Lyons
Principal Product Specialist - Decipher
SS&C Blue Prism
UK based