Common Causes

• Incorrect database credentials in configuration files.
• Corrupt database tables.
• Exceeded database storage limits.

Fixing the Issue

1. Verify Database Credentials
   1. Access your control panel and check the database name, username, and password.
   2. Update the credentials in wp-config.php (WordPress) or configuration.php (Joomla).
2. Repair Corrupt Tables
   1. In your control panel, go to phpMyAdmin.
   2. Select your database and click Check All.
   3. Choose Repair Table from the dropdown.
3. Optimize Database
   1. Use the Optimize Table function in phpMyAdmin.
   2. Consider a caching plugin for CMS platforms to reduce database load.