When calling the getPrerequisiteSubtotalRange() method the following error is returned "getPrerequisiteSubtotalRange() must be of the type array, null".So since the method is supposed to return an array, in some cases it returns null and therefore fails.
When calling the getPrerequisiteSubtotalRange() method the following error is returned "getPrerequisiteSubtotalRange() must be of the type array, null".So since the method is supposed to return an array, in some cases it returns null and therefore fails.