Not able to creat H5P content anymore

Hi there,

I regularly use H5P and everything was working fine, however, lately it seems, my new contents don't display at all. I can't edit or view them once created and if I add them into a post, the post just does not appear.

I have done last updates, could anyone help me with this?

Thank you so much!

Best wishes,

Ruth Andres

BV52's picture

Hi Ruth,

In order to give your bug report the best chance of getting answered, please include the following information:

  1. Detailed steps to reproduce the bug (exactly how and when did it happen)
  2. Platform and version number. E.g. Drupal, Wordpress, Moodle.
  3. Mobile or Desktop
  4. Browser: Chrome, Firefox, Safari etc
  5. H5P plugin version
  6. H5P content type and version (if a content type was used), and a sample URL or attached H5P.
  7. Any browser console errors
  8. Any PHP errors
  9. Screenshots if it's a visual problem

The more information you provide, the quicker the community will be able to fix it and the quicker you'll have a working solution!


Hi there,Thank you so much for your response. Please, I am giving you more information here:

  1. H5P allows me to choose the tipe of activity and create the activity. After creating the activity and pressing the botton create, I get on the screen: a grey screen with the following message: WordPress 5.0.2 is available! Please notify the site administrator.
  2. Platform is Wordpress.
  3. Desktop
  4. Browser: Chrome.
  5. H5P plugin version
  6. H5P content type: drag and drop (if a content type was used), and a sample URL ( or attached H5P (I can´t because I can´t see the result)

So after creating the H5Ps I can´t see them (or edit them) and if I attached them into a post, I can´t visualize the post.

Could you help me with this?

Please, let me know if you need more information!

Again, thank you very much.


Ruth Andrés

BV52's picture

Hi Ruth,

Can you please double check the following:

  1. Any browser console errors
  2. Any PHP errors

It's best to check on the screen after saving the content. These 2 usually gives us a better understanding of the issue.


Good afternoon:

Thank you so much again for your response. When I create the activities I don't get any other notification than a grey screen and the message: 

WordPress 5.0.3 is available! Please notify the site administrator

(please see image attached)

Could it be incompatible with the wordpress version we have currently?

On the other hand, I am not sure about how I can check the error you are mentioning, should I contact the person who manages the site?

Could it be incompatible with the wordpress version we have currently?

I am stuck at the moment using this plug in and I am not sure how to continue.

Could you advise me further?



BV52's picture

Hi Ruth,

The H5P plugin is compatible with your WP version.

You will would need to ask your administrator for assistance with the PHP errors but the browser logs can be retrieved by opening the browser console (Command + Option + J or Control + Shift + J in Chrome).


Thank you,

That is the error I found:

?v=2.0:6 WebSocket connection to 'wss://' failed: Error during WebSocket handshake: Unexpected response code: 403

v @ ?v=2.0:6

_ @ ?v=2.0:6

o @ ?v=2.0:6

I will ask the administrator too in the meanwhile.

Thank you for your help




icc's picture

It does look like there's some other plugin crashing on your site that brings H5P with it.


After contacting the administrator, he sorted it out and everything works well now.

Thank you!

Best wishes,


BV52's picture

Hi Ruth,

I'm glad it is working for you and thank you for getting back to us.