Now the English posts that are not converted are displayed, but not correctly, they still have the problem that the slug is not converted correctly.
The slug in Spanish should be "eventos" but "events" continues to appear, so when clicking on the link it gives a 404 error.
Here I leave the example, hidden link
The third event listed, called 15 YEARS CULTIVA & EXPANSION TO CROATIA, is not translated. Its link is hidden link. The correct link is hidden link, which is the one that works.
I've been doing some testing on your site and I can see that if I display the event from the administrative Events listing (backend) in each language...and language switching from within the actual event....the permalinks are correct.
Video:
It seems the issue is the "Events" archive page itself. When I attempt to look at events from this page, that is where the issue is.
I see that you have a custom "Eventos" template written. The problem would be here.
Are you the author of this template page? Normally, we cannot provide custom coding support and I may have to refer you to a WPML contractor for more assistance. I can try to help you but when I reach my coding limitation, you will have to find contract support.