@vicentsalvador92
If no SEO menu is not visible, we would like to have some more things to confirm.
1) Can you confirm that you’re running the latest version of WordPress (5.7.2)?
2) Can you confirm your Yoast SEO is the latest version v16.3?
3) Can you check your user profile and confirm that the SEO permissions have not been disabled on that screen? (The Yoast-related settings are usually near the bottom of the profile editor.)
If none of the above resolves the issue, we’d like to ask you to check for conflicts with other plugins on your site.
Often, we see problems occur in combination with another plugin or theme. The fastest way to rule out any conflict, is to deactivate all non-Yoast plugins and switch to a standard theme like Twenty Twenty.
Please test this on your development or staging site, if you have one. If not, we recommend using the Health Check & Troubleshooting plugin. This plugin has a troubleshooting mode, which does not affect normal visitors to your site.
If you’re unfamiliar with checking for conflicts, we’d like to point you to a step-by-step guide that will walk you through the process: How to check for plugin conflicts
If you do not feel comfortable to do this yourself or if this does not solve your issue, our Yoast SEO Premium plugin comes with one year of (technical) support.`
Can you please inform us of the results, so we can help you figure out what the problem is?