Concurrent program completed with warning due to XDOCTX variable

Hi,

We are calling below variable in the sub-template to fetch the sum of the group amount, when we are using by add-ins(Word BI publisher), it is working fine.

and the same sub templat, when used in

<?xdoxslt:set_variable($_XDOCTX,'total',0?>

<?xdoxslt:set_variable($_XDOCTX,'total',xdoxslt:get_variable($_XDOCTX, 'total') + sum(current-group()/QUANTITY)*BILL_RATE)?>

<?xdoxslt:get_variable($_XDOCTX, 'total')?>