unable to save or create courses in coursepress

Hello

My teachers can not create new pages and save them. I have tested this .. what happens when I click on save (within the course units – I am trying to create a new page) it takes a long time to save.. and finally it stops.. and all the text I have typed disappears – not only is it not saving but it is deleting everything I have created from the page…

Teachers are also unable to preview any pages.. when trying to view.. it takes forever and eventually we get a the following message:

502

The page request was canceled because it took too long to complete

Please look into this.. I have given access to the site.

The first issue is new and is a major problem… the second issue is old I have included a link to that discussion.. If you could please check on the status that would be great. thanks

https://premium.wpmudev.org/forums/topic/502-errors-when-trying-to-view-course-pages#post-1076941

Thanks

Brenda