Common reasons why you can't access wp-admin Go through the problems/solutions that apply to you one-by-one and you should eventually find the problem and get things working again: Your login credentials (username/password) are incorrect. You're being blocked by your security plugin. You changed the WordPress login URL.

In many cases, a blank WordPress admin panel results from code errors in your currently active theme. You can resolve this by disabling this theme. However, since you cannot access your dashboard to do this, you have to disable your theme manually using cPanel File Manager or an FTP client like FileZilla.