Cannot read property 'toLowerCase' of undefined
TypeError: Cannot read property 'toLowerCase' of undefined
    at convertIniConfig (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/cases.js:282:87)
    at Object.readCases [as default] (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/cases.js:310:23)
    at JudgeTask.doSubmission (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/hosts/vj4.js:106:44)
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async JudgeTask.handle (/usr/local/share/.config/yarn/global/node_modules/@hydrooj/hydrojudge/dist/hosts/vj4.js:69:17)
undefined