Unable to reinstall packages because folder can't be overwritten

Basically I’m trying to add slash commands to my Discord bot, but when I start the project, it says that Builders.ContextMenuCommandBuilder is not a constructor

So I try to reinstall the packages, thinking maybe it didn’t install correctly, only to be met with this:

m ERR! code ENOTEMPTY
npm ERR! syscall rename
npm ERR! path /app/node_modules/ajv
npm ERR! dest /app/node_modules/.ajv-CHyiwSPd
npm ERR! errno -39
npm ERR! ENOTEMPTY: directory not empty, rename '/app/node_modules/ajv' -> '/app/node_modules/.ajv-CHyiwSPd'

Can anyone tell me how to remove the folder because rmdir does not work

Thanks!