Notice: Trying to access array offset on value of type null in D:\laragon\www\ubl21dian\GetStatusnomina.php on line 17

Fatal error: Uncaught Exception: The trackId property has to be defined in D:\laragon\www\ubl21dian\vendor\stenfrank\ubl21dian\src\Templates\Template.php:61 Stack trace: #0 D:\laragon\www\ubl21dian\vendor\stenfrank\ubl21dian\src\Templates\Template.php(35): Stenfrank\UBL21dian\Templates\Template->requiredProperties() #1 D:\laragon\www\ubl21dian\GetStatusnomina.php(19): Stenfrank\UBL21dian\Templates\Template->sign() #2 {main} thrown in D:\laragon\www\ubl21dian\vendor\stenfrank\ubl21dian\src\Templates\Template.php on line 61