Course sidebar not working

Hi,

Once you are doing the course, the sidebar that shows the different lessons and its duration doesn’t work properly.

It should look like this: https://www.latercerapata.org/wp-content/uploads/2023/10/Captura-de-pantalla-2023-10-27-170538.png

But it looks like this: https://www.latercerapata.org/wp-content/uploads/2023/10/Captura-de-pantalla-2023-10-27-170435.png

The plugin’s version is 4.2.5.3

Thank you!

The page I need help with: [log in to see the link]