TypeError [ERR_INVALID_ARG_TYPE]: The "listener" argument must be of type function. Received undefined

[doverradio]

Hello, I am trying your package and ran into the following error:

> node .\discord.js
node:internal/validators:237
    throw new ERR_INVALID_ARG_TYPE(name, 'Function', value);
    ^

TypeError [ERR_INVALID_ARG_TYPE]: The "listener" argument must be of type function. Received undefined
    at checkListener (node:events:128:3)
    at _addListener (node:events:423:3)
    at Client.addListener (node:events:487:10)