shipUnitReference suppressed object not handled properly

[dubnemo]

{ "error": true, "errorMsg": "Error in Shipped Item Instance Plug => System.NullReferenceException: Object reference not set to an instance of an object.\r\n at AgGateway.ADAPT.ShippedItemInstancePlugin.Mapper.CreateProductInstanceSpecificContextItems(ShippedItemInstance shippedItemInstance, ILogger _logger)\r\n at AgGateway.ADAPT.ShippedItemInstancePlugin.Mapper.GetProduct(ShippedItemInstance shippedItemInstance, ILogger _logger)\r\n at AgGateway.ADAPT.ShippedItemInstancePlugin.Mapper.MapShippedItemInstance(ShippedItemInstance shippedItemInstance, ILogger _logger)\r\n at AgGateway.ADAPT.ShippedItemInstancePlugin.Mapper.MapDocument(List1 shippedProducts, ILogger _logger)\r\n at AgGateway.ADAPT.ShippedItemInstancePlugin.Plugin.TransformSIIToADM(List1 ShippedItems, String CatalogDescription, ILogger _logger)\r\n at InFieldProductIdentification.InFieldProductIdFunctionApp.GetSetupFiles(HttpRequest req, ExecutionContext executionContext, ILogger _logger) in D:\a\InFieldProductID\InFieldProductID\in-field-product-id-function-app\InFieldProductIdFunctionApp.cs:line 782" }