404 error in courses archive, courses and lessons

@marbaque can you check .htaccess file in the root folder of your WordPress website. Did it setting correctly?.

You can see more about .htaccess file in this blog: https://thimpress.com/how-to-create-the-default-htaccess-file-in-wordpress/

Thanks.

Hi, thank you I have been checking. I did set it correctly. To make sure I deleted it and used the default htaccess again.

The WordPress was also moved to another server, to test if that was the issue.

However, it is happening again. If you have time to check here is the link https://academiamunicipal.uned.ac.cr/capacitacion/

I am gonna leave it like that for a while.