该问题通常由于在请求中使用了过期的字段other_offer_image_locator_3而导致。解决方法是将其替换为新的字段image_url。下面是一个示例代码：

旧代码：

"Items": [{
    "ASIN": "B06VV9PWJ7",
    "Quantity": "1",
    "OfferingType": "MyOffer",
    "Price": {
        "ListingPrice": {
            "Amount": 25.00,
            "CurrencyCode": "USD"
        }
    },
    "Condition": "New",
    "FulfillmentChannel": "Amazon",
    "MerchantShippingGroup": "Default",
    "other_offer_image_locator_3": "https://example.com/image1.jpg"
}]

新代码：

"Items": [{
    "ASIN": "B06VV9PWJ7",
    "Quantity": "1",
    "OfferingType": "MyOffer",
    "Price": {
        "ListingPrice": {
            "Amount": 25.00,
            "CurrencyCode": "USD"
        }
    },
    "Condition": "New",
    "FulfillmentChannel": "Amazon",
    "MerchantShippingGroup": "Default",
    "Images": [
        {
            "ImageType": "PT01",
            "ImageLocation": {
                "ImageURL": "https://example.com/image1.jpg"
            }
        }
    ]
}]