Troubleshooting

What the WordPress white screen and the critical error message mean, what to check first, and the fixes to try in order.

SQL injection lets attackers read or change your WordPress database. Here is where the risk really comes from and the steps that protect your site.

What the WordPress database connection error means, what to check first, and how to fix wrong settings, a down server or a damaged database.

What a 500 internal server error means on a WordPress site, what to check first, and how to fix the usual causes, one step at a time.