Problems with command line wp mainwp

Support
1

I am testing the command line and the first one I tested from here:

wp mainwp sites --all-sites

Does not work:

PHP Fatal error:  Uncaught Error: Cannot use object of type stdClass as array in wp-content/plugins/mainwp/class/class-mainwp-wp-cli-handle.php:1704

I think the docs will need some update and testing to make sure the commands are working.
Has anyone an updated list of commands?

Thanks