Web - Server

Hi guys.
I managed to upload zip file as jpg and in one moment it was working right and I could read a file, but all of a sudden it keeps throwing me this error:
Warning: include(***://tmp/upload/*****.jpg#p.php): failed to open stream: operation failed in /challenge/web-serveur/ch43/index.php on line 40 Warning: include(): Failed opening ’***://tmp/upload/****.jpg#p.php’ for inclusion (include_path=’.:/usr/share/php’) in /challenge/web-serveur/ch43/index.php on line 40
I have no idea how to fix it, even though I do everything that I did when it was working.
Is an issue with a challenge or am I doing anything wrong here?