This problem may be a plugin or theme conflict. Please attempt to deactivate all plugins and switch to the default Twenty Twenty-Three theme. If the problem goes away, re-activate them one by one to identify the source of the problem.
If you can install plugins, install Health Check. On the troubleshooting tab, you can click the button to deactivate all plugins and change the theme for you while you’re still logged in without affecting normal visitors to your site.
If neither of those make a difference, you may need to repair the database.
Access your WordPress database via phpMyAdmin (you’ll find this in your hosting account’s control panel), check all of the tables, and choose “Repair tables” from the pull-down menu.
