Deprecated: Inpsyde\Zettle\PhpSdk\Exception\Validator\VariantOptionDefinitions\EmptyVariantOptionDefinitionsException::__construct(): Implicitly marking parameter $previous as nullable is deprecated, the explicit nullable type must be used instead in /var/www/html1/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Exception/Validator/VariantOptionDefinitions/EmptyVariantOptionDefinitionsException.php on line 14

Fatal error: Uncaught Error: Interface "Inpsyde\Zettle\PhpSdk\Exception\ValidatorException" not found in /var/www/html1/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Exception/Validator/VariantOptionDefinitions/EmptyVariantOptionDefinitionsException.php:12 Stack trace: #0 {main} thrown in /var/www/html1/wp-content/plugins/zettle-pos-integration/modules/zettle-php-sdk/src/Exception/Validator/VariantOptionDefinitions/EmptyVariantOptionDefinitionsException.php on line 12