Listening to the LIT Music Bot, it is playing "Never Gonna Give you up" on repeat, except there's some noise. This is a morse with the longer noise being "_", shorter noise being ".", and the woodblock sound being " ".

._.. .. _ _._. _ .._. { ._. .. _._. _._ .. .._. .. . _.. }

Using an online Morse Code translator (https://morsecode.world/international/translator.html), we get the flag.

Flag: LITCTF{RICKIFIED}

Original writeup (https://github.com/kiyotaka-akaiwa/ctf-writeups/tree/main/LITCTF/2022/Were_no_stranger_to_love).