(node:2560) UnhandledPromiseRejectionWarning: TypeError: NaN is not a function
    at Object.execute (/home/runner/WiseBulkyLevel/commands/slowmode.js:6:9)
    at Client.<anonymous> (/home/runner/WiseBulkyLevel/index.js:67:13)
    at Client.emit (events.js:315:20)
    at Client.EventEmitter.emit (domain.js:483:12)
    at MessageCreateAction.handle (/home/runner/WiseBulkyLevel/node_modules/discord.js/src/client/actions/MessageCreate.js:31:14)
    at Object.module.exports [as MESSAGE_CREATE] (/home/runner/WiseBulkyLevel/node_modules/discord.js/src/client/websocket/handlers/MESSAGE_CREATE.js:4:32)
    at WebSocketManager.handlePacket (/home/runner/WiseBulkyLevel/node_modules/discord.js/src/client/websocket/WebSocketManager.js:384:31)
    at WebSocketShard.onPacket (/home/runner/WiseBulkyLevel/node_modules/discord.js/src/client/websocket/WebSocketShard.js:444:22)
    at WebSocketShard.onMessage (/home/runner/WiseBulkyLevel/node_modules/discord.js/src/client/websocket/WebSocketShard.js:301:10)
    at WebSocket.onMessage (/home/runner/WiseBulkyLevel/node_modules/ws/lib/event-target.js:125:16)
(node:2560) 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(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:2560) [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.