when creating In House training getting error

Hi , I have to installed In House Training App,then i have clicked courses respective class it's fine but i'm trying to create in house training then i click save button getting error . url should be like error:the website enocounterd an unexpected error,Please try again later. how can i display below info in course details page right side section? Group: You are the group manager Hide for anonymous users: Yes Requires validation: Yes Group visibility: Private (users can only be subscribed by a course administrator or a teacher, the course is hidden from course catalogue) course_image: please help me. Thanks in Advance.