My website doesn’t work after updating

Do you have backups available? Then use them to restore the website. Maybe your hoster has one available for you. Contact their support.

Thanks, I’ll look into that possibility.
Someone suggested deactivating all the plugins, and then activating them one by one. I can’t do that, because my credentials to enter the wordpress admin are no longer valid and if I use the option of having lost my password it doesn’t work for me. I literally can’t get into admin mode

https://www.ciudadcubica.com/wordpress1.jpg

What can happen if I eliminate the second option, the most recent one?

About the screenshot: unfortunately I can’t judge where it comes from and what it represents. You should contact the support of your hoster for clarification.

About the access to your WordPress: you can also reset the password via the database and get access again. You can find instructions here:

https://www.ads-software.com/documentation/article/reset-your-password/#through-phpmyadmin

Also here the support of your hoster can help you.