One of the main causes is a corrupted database. If this WordPress login error has been appearing on your whole website, it means that your WordPress website could not establish a secure database connection.
Below we outline the most common reasons why the WordPress admin login might not be working. You may also find that the WordPress admin login is not working because you've updated to a newer version of WordPress but other parts of your site are not compatible with the latest update. If you're using an old version of WordPress, a plugin or theme for example, then there's a good chance that this could be your problem. The wp-admin not working issue can be caused for a number of reasons. You may find that you can't log in to the WordPress admin dashboard of your website for several reasons.
