Notice: Undefined index: keyword in /home/embarrad/ebayApi/finding/find.php on line 59

Fatal error: Uncaught DTS\eBaySDK\Exceptions\InvalidPropertyTypeException: Invalid property type provided for keywords. Expected string but got NULL in /home/embarrad/ebayApi/vendor/dts/ebay-sdk-php/src/Types/BaseType.php:497 Stack trace: #0 /home/embarrad/ebayApi/vendor/dts/ebay-sdk-php/src/Types/BaseType.php(310): DTS\eBaySDK\Types\BaseType::ensurePropertyType('DTS\\eBaySDK\\Fin...', 'keywords', NULL) #1 /home/embarrad/ebayApi/vendor/dts/ebay-sdk-php/src/Types/BaseType.php(87): DTS\eBaySDK\Types\BaseType->set('DTS\\eBaySDK\\Fin...', 'keywords', NULL) #2 /home/embarrad/ebayApi/finding/find.php(59): DTS\eBaySDK\Types\BaseType->__set('keywords', NULL) #3 {main} thrown in /home/embarrad/ebayApi/vendor/dts/ebay-sdk-php/src/Types/BaseType.php on line 497