Getting an error when I try to create a slide show using Meta Slider plugin.

Error message:

Warning: Invalid argument supplied for foreach() in /home/xxxxxx/public_html/wp-content/plugins/wpfront-user-role-editor-business-pro/classes/personal-pro/class-wpfront-user-role-editor-menu-editor.php on line 324

Warning: Cannot modify header information – headers already sent by (output started at /home/xxxxxx/public_html/wp-content/plugins/wpfront-user-role-editor-business-pro/classes/personal-pro/class-wpfront-user-role-editor-menu-editor.php:324) in /home/xxxxxx/public_html/wp-includes/pluggable.php on line 1196

I installed a plugin called Meta Slider Pro. (This is the pro version of the free plugin at https://wordpress.org/plugins/ml-slider/.

Note: I’m using this in a WP Multisite.

I’m using WPFront User Role Editor Pro.

I’m asking if you can help identify the issue and resolve this. Since it indicates it is having a problem with class-wpfront-user-role-editor-menu-editor.php I’m hoping you can tell me how to resolve this.

Please let me know your thoughts.

Thanks,
Gary Gordon