Fatal error: Uncaught TypeError: calcMyRate(): Argument #1 ($thisYearAmount) must be of type float, null given, called in /var/www/invoice.iwes.online/modules/reports/reportSalesByPeriodsData.php on line 156 and defined in /var/www/invoice.iwes.online/modules/reports/reportSalesByPeriodsData.php:22 Stack trace: #0 /var/www/invoice.iwes.online/modules/reports/reportSalesByPeriodsData.php(156): calcMyRate() #1 /var/www/invoice.iwes.online/modules/reports/reportSalesByPeriods.php(27): include('...') #2 /var/www/invoice.iwes.online/index.php(441): include('...') #3 {main} thrown in /var/www/invoice.iwes.online/modules/reports/reportSalesByPeriodsData.php on line 22