HI Kostas,

I thought you know Joomla better ;/

Solutions:

1. Edit all articles there are displayed on that subpage and change their author to you (your User name) + save changes.

OR

2. Delete all demo articles, and create a new one.

OR

3. Create a new User then using PHPMyAdmin change his ID from current to 422.

This same method was in Joomla 2.5, Joomla 3.x - several dozen tips on the web.

Hi Paul, The problem is not if I know Joomla or not. The problem is that I installed a quick start template from which the user who created the articles is absent and that means extra work for all of us. Anyway thank's a lot for the answer even if it was ironic.

Pablo Frankowski, amigo humildad primero que todo, el servicio de las plantillas no es gratis, pagamos por ello, y si responder una pregunta con ironia y soberbia estas perdido en la estratosfera, que bien por vos que sos el genio de joomla!!!

@Kamca, from webmasters we expect basic knowledge of Joomla, using Helix documenation and google/bing ;)

https://www.joomshaper.com/documentation/helix-framework/troubleshooting-faq#juser-load-could-not-load-this-user-user-id-xx

Have a nice day!