Discord.js v14 Music Bot #2 | Play command

hello so im having a problem it says this error "TypeError: Cannot read properties of undefined (reading 'manager')" what does this mean?

Just found this video and im having some issues it says TypeError: Cannot read properties of undefined (reading 'options') do you have any idea on how to fix this error?

Hey nice vid. Does yours still work now? I just started and I used discord.js doc so I'm a bit curious. My bot goes into the channel just defened itself even tho no errors on the code

nice videos man