云函数调用数据库出错？

{

  "errCode": -404011,

  "errMsg": "Error: errCode: -404011 cloud function execution error | errMsg: cloud.callFunction:fail requestID ed4445d2-e228-11ea-8d19-525400fbcc42, cloud function service error code -504002, error message ReferenceError: phone is not defined\n    at Runtime.exports.main [as handler] (/var/user/index.js:21:35)\n    at Runtime.handleOnce (/var/runtime/node10/Runtime.engine.js:213:23)\n    at Timeout.setTimeout [as _onTimeout] (/var/runtime/node10/Runtime.engine.js:54:12)\n    at ontimeout (timers.js:436:11)\n    at tryOnTimeout (timers.js:300:5)\n    at listOnTimeout (timers.js:263:5)\n    at Timer.processTimers (timers.js:223:10); at cloud.callFunction api; "

}

这里面的 phone是我的数据库，主要是用来模糊查询（字符串），不知道哪里有问题