Error while loading course presentation

Hello Everyone, 

I read a lot about this error, but I can't find the solution. 

Every time when I load the course presentation editor i got errors. 

The hit on F12 from the keyboard shows a lot of rules with "ERR 508 aborted"

I'm using Moodle 3.8.3 with the H5P plugin installed. 
The libraries are updated
The cache is clear

I tried some solutions like the permission ( i read in a topic ) to 777 
Updated the library 
Update the editor with the arrow box (plugin) to update. 

Sometimes the editor works fine ( looks like after some 20 or 30 frustration hits ), 

sometimes I can wait while the time is ticking 

I don't know whats wrong with our installation.. 

The others works fine.. : Find the words, Anitmation, Puzzle,, blah blah.. 
It's only the course presentation editor

Can someone help me please. 




otacke's picture


An HTTP error 508 means that your browser is requesting a file that sends your server into a loop by forwarding to itself. Your should check your server configuration for "redirects" that are going wrong, either in htaccess files or directly in your server's config.


Hi Oliver, 

I understand the redirect problem, but can't find it :-(. 

I tried to reinstall the H5P plugin because we migrated the site to HTTPS. Maybe the issue was http / https etc. 

But i dindn't find the solution. I see 508 and sometimes 255 ( SSL? )

The answer of the webhost is that i reached the number of connections > more than 2845 !!

He also gave me a link with the log file but i have to read this. ( it is a lot of text )..


I will look further, 


grtz .. reinko 


I search  

The .htaccess

otacke's picture

Hi Reinko!

Reinstalling the plugin won't help here if the server is the problem. Yes, using https in addition to http can lead to this problem: Usually an HTTP  redirect from http to https is added in order to lead people to the secure version. If that's buggy ...