Fatal error: Uncaught TypeError: calcMyRate(): Argument #1 ($thisYearAmount) must be of type float, null given, called in /www/htdocs/w01e4858/cavano.de/invoices.cavano.de/modules/reports/reportSalesByPeriodsData.php on line 156 and defined in /www/htdocs/w01e4858/cavano.de/invoices.cavano.de/modules/reports/reportSalesByPeriodsData.php:22 Stack trace: #0 /www/htdocs/w01e4858/cavano.de/invoices.cavano.de/modules/reports/reportSalesByPeriodsData.php(156): calcMyRate(NULL, 0) #1 /www/htdocs/w01e4858/cavano.de/invoices.cavano.de/modules/reports/reportSalesByPeriods.php(27): include('/www/htdocs/w01...') #2 /www/htdocs/w01e4858/cavano.de/invoices.cavano.de/index.php(441): include('/www/htdocs/w01...') #3 {main} thrown in /www/htdocs/w01e4858/cavano.de/invoices.cavano.de/modules/reports/reportSalesByPeriodsData.php on line 22