云函数数据查询报错问题？

TypeError: Reduce of empty array with no initial value\n at Array.reduce (\u003canonymous\u003e)\n at Runtime.exports.main [as handler] (/var/user/index.js:62:37)\n at process._tickCallback (internal/process/next_tick.js:68:7)

不知道报错原因是什么，需要请教大佬