Cannot parse testdata.
Error: Cannot parse testdata.
    at readAutoCases (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/cases.js:189:15)
    at async readYamlCases (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/cases.js:270:19)
    at async Object.readCases [as default] (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/cases.js:318:20)
    at async JudgeTask.doSubmission (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/hosts/vj4.js:118:23)
    at async JudgeTask.handle (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/hosts/vj4.js:81:17)
    at async daemon (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/daemon.js:84:17)
[{}]
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