Hi,
I use MB AIO, and I now am getting this fatal error if I try to edit the settings of a taxonomy in the AIO. I had just updated to the latest version.
Fatal error: Uncaught Error: Class 'RWMB_Update_Option' not found in /home/customer/www/acume.org/public_html/wp-content/plugins/meta-box-aio/vendor/meta-box/mb-custom-post-type/src/Edit.php:111 Stack trace: #0 /home/customer/www/acume.org/public_html/wp-content/plugins/meta-box-aio/vendor/meta-box/mb-custom-post-type/src/Edit.php(24): MBCPT\Edit->is_premium_user() #1 /home/customer/www/acume.org/public_html/wp-includes/class-wp-hook.php(310): MBCPT\Edit->register_upgrade_meta_box('mb-taxonomy') #2 /home/customer/www/acume.org/public_html/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters(NULL, Array) #3 /home/customer/www/acume.org/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #4 /home/customer/www/acume.org/public_html/wp-admin/includes/meta-boxes.php(1599): do_action('add_meta_boxes', 'mb-taxonomy', Object(WP_Post)) #5 /home/customer/www/acume.org/public_html/wp-admin/edit-form-advanced.php(271): register_and_do_post_meta_boxes(Object(WP_Post)) #6 /home/customer/www/acume.org/public_html/wp in /home/customer/www/acume.org/public_html/wp-content/plugins/meta-box-aio/vendor/meta-box/mb-custom-post-type/src/Edit.php on line 111