@r-a-y I’ll provide you with developer’s contacts in a private message for more efficient work, because I’m just a newcomer and not sure I can be helpful here further.
I’ve faced the same problem. The patch https://buddypress.trac.wordpress.org/attachment/ticket/7140/7140.01.patch releaved me from the initial problem but now I have another one error message at the same place – Courses Group widget (it doesn’t allow to edit Courses):
Fatal error: Class ‘BP_Groups_Group’ not found in /path-to-project/wp-content/themes/lms/framework/buddypress/metaboxes.php on line 15