Unexpected Application Error!

Cannot read properties of null (reading 'default')

TypeError: Cannot read properties of null (reading 'default')
    at L (https://paperfake.cn/pcdir/static/js/lib-react.5d52ce1c.js:2:133101)
    at Ei (https://paperfake.cn/pcdir/static/js/lib-react.5d52ce1c.js:2:119857)
    at ks (https://paperfake.cn/pcdir/static/js/lib-react.5d52ce1c.js:2:108633)
    at ys (https://paperfake.cn/pcdir/static/js/lib-react.5d52ce1c.js:2:108561)
    at gs (https://paperfake.cn/pcdir/static/js/lib-react.5d52ce1c.js:2:108424)
    at os (https://paperfake.cn/pcdir/static/js/lib-react.5d52ce1c.js:2:105259)
    at as (https://paperfake.cn/pcdir/static/js/lib-react.5d52ce1c.js:2:103814)
    at S (https://paperfake.cn/pcdir/static/js/lib-react.5d52ce1c.js:2:137462)
    at T (https://paperfake.cn/pcdir/static/js/lib-react.5d52ce1c.js:2:137994)
    at I.<computed> (https://paperfake.cn/pcdir/static/js/lib-polyfill.633f54f3.js:1:76540)