Have a look at this post IntegrityError: (1062, "Duplicate entry 'Sales Taxes and Charges Template' for key 'PRIMARY'") - #6 by nabinhait and see if it helps.
The table is different, but the principle is the same (I think)
Have a look at this post IntegrityError: (1062, "Duplicate entry 'Sales Taxes and Charges Template' for key 'PRIMARY'") - #6 by nabinhait and see if it helps.
The table is different, but the principle is the same (I think)