CoursePress login problems

We have login problem again!
See this video: https://goo.gl/ZVxWA9

And this error many times on all student: PHP Warning: array_filter() expects parameter 1 to be array, boolean given in /nas/content/live/simplylearn02/wp-content/plugins/coursepress/2.0/include/coursepress/data/class-student.php on line 2004