rbenv: bundle: command not found

For those using RBENV for managing ruby versions, whenever you install a different ruby version and then you'll be faced with the following error(not 100% same lol):

rbenv: bundle: command not found

The `bundle' command exists in these Ruby versions:
  2.3.3
  2.4.4
  2.5.7
  2.6.5
  2.7.0

Both these commands will be helpful in fixing the issue.

gem update --system

bundle update --bundler