form designer problem

I have a strange problem. When I try to run or design a form an error appears

“You cannot insert the control named ‘Control1000000047’ as heading of the table box named ‘Control1000000000’ because the control named ‘Control1000000025’ is already that heading.”

I cannot open the the designer so i cannot do anything. Can anyone please help me

Export the form as text, find the control number and change it. It’s probably an issue where there are two label controls set up with the same parent control. Did someone merge some objects together recently?

Thanks very much. it solved the problem. i think shapes are not useful for forms.