error

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C:\Users\isabe\OneDrive\my discord music bot>node .
Ready!
^C
C:\Users\isabe\OneDrive\my discord music bot>node .
Ready!
(node:13240) UnhandledPromiseRejectionWarning: TypeError [ERR_INVALID_ARG_TYPE]: The "url" argument must be of type string. Received type undefined
    at validateString (internal/validators.js:112:11)
    at Url.parse (url.js:155:3)
    at Object.urlParse [as parse] (url.js:150:13)
    at Object.exports.getURLVideoID (C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\util.js:273:22)
    at Object.exports.getVideoID (C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\util.js:304:20)
    at Object.exports.<computed> [as getFullInfo] (C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\info.js:362:21)
    at C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\info.js:355:24
    at new Promise (<anonymous>)
    at Function.exports.<computed> [as getInfo] (C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\info.js:354:14)
    at execute (C:\Users\isabe\OneDrive\my discord music bot\index.js:54:30)
(node:13240) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 2)
(node:13240) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
(node:13240) UnhandledPromiseRejectionWarning: TypeError [ERR_INVALID_ARG_TYPE]: The "url" argument must be of type string. Received type undefined
    at validateString (internal/validators.js:112:11)
    at Url.parse (url.js:155:3)
    at Object.urlParse [as parse] (url.js:150:13)
    at Object.exports.getURLVideoID (C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\util.js:273:22)
    at Object.exports.getVideoID (C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\util.js:304:20)
    at Object.exports.<computed> [as getFullInfo] (C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\info.js:362:21)
    at C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\info.js:355:24
    at new Promise (<anonymous>)
    at Function.exports.<computed> [as getInfo] (C:\Users\isabe\OneDrive\my discord music bot\node_modules\ytdl-core\lib\info.js:354:14)
    at execute (C:\Users\isabe\OneDrive\my discord music bot\index.js:54:30)
(node:13240) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 4)