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WSOD usually happens due to plugin conflicts or exhausted memory. Try disabling all plugins via FTP or your hosting panel, then enable them one by one. Also, increase the PHP memory limit in your wp-config.php file.

This error often relates to corrupted .htaccess files, plugin/theme conflicts, or insufficient PHP memory. Renaming your .htaccess file to regenerate it and disabling plugins can help isolate the cause.

This error means WordPress can’t connect to your database. Check your wp-config.php file for correct database credentials, verify the database server is running, and ensure your hosting account is active.

This happens due to redirect loops caused by incorrect site URL settings or conflicting redirect rules. Check your WordPress Address and Site Address in settings or clear any redirect rules in your .htaccess file.

Failed updates can occur due to insufficient file permissions, server timeout, or conflicting plugins. Ensure your wp-content folder has correct permissions (usually 755), and try updating plugins manually via FTP if necessary.

This is typically caused by incorrect file permissions, security plugins, or .htaccess rules blocking access. Review your file permissions and temporarily disable security plugins to identify the issue.

WordPress often fails to send emails due to server restrictions. Use SMTP plugins like WP Mail SMTP to configure proper mail servers, or check with your hosting provider to enable email sending.

Speed issues often stem from unoptimized images, heavy plugins, or lack of caching. Use image compression plugins, deactivate unnecessary plugins, and implement caching solutions like WP Rocket or W3 Total Cache.