If you encountered an issue while updating the plugin that caused the plugin’s files to become incomplete or damaged, we would recommend performing a manual update of the plugin in order to resolve that. We have instructions on how to upgrade the plugin manually at the following link: https://kb.yoast.com/kb/how-can-i-update-my-free-plugin/#ftp. You will need an FTP program such as FileZilla and your FTP details, which can be obtained from your host provider.
If you have successfully updated the plugin but are experiencing an issue caused by an incompatibility with the 11.0 plugin not working with your website, we would next recommend performing the following troubleshooting steps:
1. Make sure the issue doesn’t persist when Yoast SEO is disabled.
2. Check for conflicts.
3. Check for JavaScript errors with your console.
If you find any JavaScript errors related to Yoast SEO or if there is a conflict with a plugin or a theme, you can create a new GitHub issue for our developers. Please report the issue to a third party developer as well.
If you didn’t find any conflicts or errors, we think the issue is specific to your site. We’d need to investigate further but are unable to do so on these forums. You can purchase Yoast SEO Premium and receive our Premium email support and we can help you further.