For the ParentPay reports to process correctly all academic year groups need to be configured in a particular way on ScholarPack. This configuration is covered in the image below:
Note that the description must not contain the word 'Year' before the number.
To access this page in ScholarPack you need to navigate to the core setup section and then locate the Years tab. Once there, you will see the above list of Academic Years that should be altered to match the format in the image.