An unexpected error occurred.

TypeError: Cannot read properties of undefined (reading 'category')
    at x5 (https://mbc-academy.app/assets/index-BtcLBbKr.js:127:598)
    at Tu (https://mbc-academy.app/assets/index-BtcLBbKr.js:48:48757)
    at Oh (https://mbc-academy.app/assets/index-BtcLBbKr.js:48:71641)
    at n1 (https://mbc-academy.app/assets/index-BtcLBbKr.js:48:82061)
    at T1 (https://mbc-academy.app/assets/index-BtcLBbKr.js:48:117972)
    at yw (https://mbc-academy.app/assets/index-BtcLBbKr.js:48:117009)
    at rp (https://mbc-academy.app/assets/index-BtcLBbKr.js:48:116839)
    at j1 (https://mbc-academy.app/assets/index-BtcLBbKr.js:48:113606)
    at V1 (https://mbc-academy.app/assets/index-BtcLBbKr.js:48:125530)
    at MessagePort.R (https://mbc-academy.app/assets/index-BtcLBbKr.js:17:1629)