Image didnt shown up in the School lesson

Hi admin,
I would like to report that most of the image of the lesson in the “School” didnt show up. Especially the > School > Middle School > Pivot Points > Forex Pivot Points

From this page onward, most of the image cant be shown, I right click and open in new tab , it show 404 file not found. I cant continue my lesson without the image guidance. The other page also suffer from this problem. I had try different browser, the image also didn’t shown up and I believed this might be the problem of the image had missing on the server.

Thank you.

Some time i even cant see the photos uploaded by members in forum
I report this few time and nothing happen