InitComplete and paging

Hi, I try to use IntiComplete function to call js function when the whole table is created. But It doesn't work when I go to another page. I use initComplete to aggregate sum in a group . I add initComplete to the example
https://datatables.net/examples/advanced_init/row_grouping.html
And It's work fine when the table is generated but It crashs on page click. Any suggestions to make aggregation work though paging.