QQ小游戏支付预下单失败错误{"errcode":-5,"code":-5,"errmsg":"服务器错误：[503][GamePrePay] proto packing error

接入QQ小游戏支付功能后,每次预下单时会有一定的概率出现下单失败,也不是每次都失败,请教一下有哪位遇到过这个问题呢?

QQ小游戏支付预下单失败,返回报错内容:

{
"errcode": -5,
"code": -5,
"errmsg": "服务器错误：[503][GamePrePay] proto packing error \nTypeError: Cannot read property 'request' of undefined\n at Object.data (/data/release/node_modules/open-api-server/pb/config.js:53:50)\n at Sender._send (/data/release/node_modules/open-api-server/pb/sender.js:199:51)\n at ipRequest (/data/release/node_modules/open-api-server/pb/sender.js:76:34)\n at Object. (/data/release/node_modules/open-api-server/pb/sender.js:126:13)\n at fire (/usr/local/services/TSW-1.0/bin/tsw/util/Deferred/index.js:318:26)\n at Object.add [as done] (/usr/local/services/TSW-1.0/bin/tsw/util/Deferred/index.js:358:21)\n at /data/release/node_modules/open-api-server/pb/sender.js:106:12\n at new Promise ()\n at Sender.send (/data/release/node_modules/open-api-server/pb/sender.js:77:12)\n at /data/release/node_modules/open-api-server/pb/client.js:82:10",
"message": "服务器错误：[503][GamePrePay] proto packing error \nTypeError: Cannot read property 'request' of undefined\n at Object.data (/data/release/node_modules/open-api-server/pb/config.js:53:50)\n at Sender._send (/data/release/node_modules/open-api-server/pb/sender.js:199:51)\n at ipRequest (/data/release/node_modules/open-api-server/pb/sender.js:76:34)\n at Object. (/data/release/node_modules/open-api-server/pb/sender.js:126:13)\n at fire (/usr/local/services/TSW-1.0/bin/tsw/util/Deferred/index.js:318:26)\n at Object.add [as done] (/usr/local/services/TSW-1.0/bin/tsw/util/Deferred/index.js:358:21)\n at /data/release/node_modules/open-api-server/pb/sender.js:106:12\n at new Promise ()\n at Sender.send (/data/release/node_modules/open-api-server/pb/sender.js:77:12)\n at /data/release/node_modules/open-api-server/pb/client.js:82:10"
}

我感觉 可能是网络异常 导致的，是否有网络中断的一些 触发机制，重新获取发送！可通过QQ查询订单列表 此订单状态 判断是否重新 处理请求！

测试一下会不会出现订单号重复的问题。