Benefit Defaults Error

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I am trying to get W2's ready for printing.  My only hold up right now is getting the insurance to show up on the W2.  When I go into the the Payroll Defaults my medical insurance catagory is the only one that will not let me go to the next page to click show this amount on W2's.  I get an error message that says "You can not name this ins plan {0} because another payroll field exists with the same name." I have tried everything, even renaming it, but it just creates a new insurance benefit.  Can anyone help?  Thank you!