调用交易投诉处理中的商家提交退款凭证接口

POST:

https://api.weixin.qq.com/wxaapi/minishop/bussiSupplyRefund?access_token=58_oHEd9_v35D2ZK1WpBjDGJaXADcinUf1R7obno2j4Vb5VPp30MCa04jgL6-CABKniuoRkfmQq4m_HuoLZHfKRLXy7u8gnN3PWJ5eaZlaOmJRuzrIKWpIVsFG9dcIyPxXnJmrdYY562m6fnRLqEQKeABAXJD

{

    "content": "XXX已于2022-06-28 19:24:26退款，请查收",

    "complaintOrderId": "1328586", 

    "mediaIdList": [],

}

报错如下：

{

"errmsg": "系统错误 rid: 62baeb20-657b357f-44a82cc2",

"errcode": -1,

"rid": "62baeb20-657b357f-44a82cc2",

"__rpcCount": 5

}

请问一下是什么原因