Warning: Undefined array key 0 in /var/www/html/testing/admin-panel/app/classes/Whitelabels.php on line 139

Fatal error: Uncaught TypeError: array_keys(): Argument #1 ($array) must be of type array, null given in /var/www/html/testing/admin-panel/app/classes/DATAOBJECT.class.php:170 Stack trace: #0 /var/www/html/testing/admin-panel/app/classes/DATAOBJECT.class.php(170): array_keys(NULL) #1 /var/www/html/testing/admin-panel/app/classes/Whitelabels.php(141): DATAOBJECT->normalize_data_types(NULL) #2 /var/www/html/testing/admin-panel/app/init.php(38): Whitelabels->setCurrent() #3 /var/www/html/testing/admin-panel/public/manage/index.php(2): require_once('/var/www/html/t...') #4 {main} thrown in /var/www/html/testing/admin-panel/app/classes/DATAOBJECT.class.php on line 170