Pivot Table - Refresh Restarts Excel

I inserted new columns in a table I use in (2) pivot tables.  Now when I refresh the data in the pivot table excel restarts, the doc is recovered with no explanation or data under show repairs.  I've have no idea what to check for.  I did copy and edit this workbook from my last project.  There are data field in the fields list that I don't see in the table and I can't seem to find them.  I've tried creating the pivot tables from scratch but still no change.  Can you assist please.