Ok ... easiest way to see & fix the errors (you must have some blank forms hanging about) is to switch to the FORMS mode and look down the left side for the red "!" marks ... those are the pages that need attention ... click on one and look at the form in the window ... find the red boxes ... those are the places that need fixing. If you don't need that form at all then simply delete it on the bottom of the screen.
When you think you have them all fixed click on the red stop sign with the red "!" in it to run an error check. When you are done then switch back to the step by step mode to finish the FILE tab.