Infragistics Web Grid Issue IE 11

Hello Team,

we are using Apriso Flexnet 9.5 verison with Infragistics Web Grid Version "5.2.20052.1028" and it works fine for IE 8 version when multiple rows are selected.

when we are accessing the same using IE 11 browser, It throws the following exceptions when selecting multiple rows from web grid.

a) Unable to get property "init" of undefined or null reference

b) Unable to get property "apply" of undefined or null reference 

Kindly let us know the solution to fix this issue in IE11

Thanks

Praveen