Alert on critical error on website after installation of Meta Box AIO

Hi,

After I installed Meta Box AIO I received a notification / alert from WordPress about a fatale error on my website, pointing to your plugin.

I created a cpt and custom fields, and indeed, when I displayed in frontend, I got a critical error message.

This is the error details they provided:
An error of the type E_ERROR was caused on line 22 of the file /home/h4stidee/public_html/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-builder/bootstrap.php. Error: Uncaught Error: Class 'MBB\RestApi' not found in /home/h4stidee/public_html/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-builder/bootstrap.php:22
Stack trace:
#0 /home/h4stidee/public_html/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-builder/meta-box-builder.php(31): require()
#1 /home/h4stidee/public_html/wp-includes/class-wp-hook.php(287): mb_builder_load('')
#2 /home/h4stidee/public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array)
#3 /home/h4stidee/public_html/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#4 /home/h4stidee/public_html/wp-settings.php(546): do_action('init')
#5 /home/h4stidee/public_html/wp-config.php(91): require_once('/home/h4stidee/...')
#6 /home/h4stidee/public_html/wp-load.php(37): require_once('/home/h4stidee/...')
#7 /home/h4stidee/public_html/wp-admin/admin-ajax.php(22): require_once('/home/h4stidee/...')
#8 {main}
thrown