elements of the task is not completed in full

Hi, all.
My English is very bad.
The course has one job. In this task, you need to upload the file. The file is uploaded to the server normalno.No job is still considered not made and the student can not move to the next. Through the tab "Assessment" I can file on your Computer literacy upload. Wordpress, CoursePress Pro MarketPress - the last version. Other plugins from this site is not established.The template is selected from the plugin.