Fatal error: Uncaught Error: Call to undefined function DTS\eBaySDK\Services\json_encode() in /home/embarrad/ebayApi/vendor/dts/ebay-sdk-php/src/Services/BaseRestService.php:208 Stack trace: #0 /home/embarrad/ebayApi/vendor/dts/ebay-sdk-php/src/Services/BaseRestService.php(155): DTS\eBaySDK\Services\BaseRestService->buildRequestBody(Array) #1 /home/embarrad/ebayApi/vendor/dts/ebay-sdk-php/src/Inventory/Services/InventoryService.php(368): DTS\eBaySDK\Services\BaseRestService->callOperationAsync('CreateOrReplace...', Object(DTS\eBaySDK\Inventory\Types\CreateOrReplaceInventoryItemRestRequest)) #2 /home/embarrad/ebayApi/vendor/dts/ebay-sdk-php/src/Inventory/Services/InventoryService.php(359): DTS\eBaySDK\Inventory\Services\InventoryService->createOrReplaceInventoryItemAsync(Object(DTS\eBaySDK\Inventory\Types\CreateOrReplaceInventoryItemRestRequest)) #3 /home/embarrad/ebayApi/inventory/02-create-or-replace-inventory-item.php(87): DTS\eBaySDK\Inventory\Services\InventoryService->createOrReplaceInventoryItem(Object(DTS\eBaySDK\I in /home/embarrad/ebayApi/vendor/dts/ebay-sdk-php/src/Services/BaseRestService.php on line 208