小程序中没有index/index、nearby-stores/index、user-center/index这几个页面，但都出现了类似错误。在3月份后台开始接收到报错，这是因为什么呢

Error: onPageNotFound error: page "pages/nearby-stores/index" is not found.
at Function.<anonymous> (https://lib/WAServiceMainContext.js:1:1344646)
at p (https://lib/WAServiceMainContext.js:1:163391)
at Vt.<anonymous> (https://lib/WAServiceMainContext.js:1:163834)
at Vt.emit (https://lib/WAServiceMainContext.js:1:626648)
at emit (https://lib/WAServiceMainContext.js:1:632121)
at https://lib/WAServiceMainContext.js:1:1837427
at Vt.<anonymous> (https://lib/WAServiceMainContext.js:1:982130)
at Vt.emit (https://lib/WAServiceMainContext.js:1:627059)
at Object.emit (https://lib/WAServiceMainContext.js:1:632105)
at https://lib/WAServiceMainContext.js:1:633178