后台有很多此类报错日志，官方mkdirSync也没有这个信息，请问这个怎么解决呢？
appid:wx73e100a1d27fe6d9
mkdirSync:fail fs not mounted
Error: mkdirSync:fail fs not mounted
at mkdirSync (https://lib/WAGame.js:2:1269787)
at Object.i. (https://lib/WAGame.js:2:1279826)
at Object.t. [as mkdirSync] (https://lib/WAGame.js:2:1263777)
at an (https://lib/WAGame.js:2:1261745)
at Function.success (https://lib/WAGame.js:2:1264047)
at Object.success (https://lib/WAGame.js:2:695490)
at https://lib/WAGame.js:2:1903842
at r (https://lib/WAGame.js:2:2069)
请具体描述问题出现的流程，并提供能复现问题的简单代码片段（https://developers.weixin.qq.com/miniprogram/dev/devtools/minicode.html）。