At the code was missing two (.) :

1) At admin/includes/boxes/catalog.php has to be
//kgt - discount coupons
'' . BOX_CATALOG_PRODUCTS_EXPECTED . '
'.
'' . BOX_CATALOG_DISCOUNT_COUPONS . '' );
/***************
'' . BOX_CATALOG_PRODUCTS_EXPECTED . '' );
***************/
//end kgt - discount coupons

and

2) At admin/includes/boxes/reports.php has to be

//kgt - discount coupons report
'' . BOX_REPORTS_ORDERS_TOTAL . '
'.
'' . BOX_REPORTS_DISCOUNT_COUPONS . '');
/*************
'' . BOX_REPORTS_ORDERS_TOTAL . ''); *************/
//end kgt - discount coupons report

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