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Blank page or HTTP 500 after upload

Usually PHP version or missing extension.

Check PHP version

Run php -v on the server — must be 8.2+.

Enable error display temporarily

In config/config.php set debug if available, or check hosting error logs.

Common causes

• Wrong PHP version selected in cPanel
• Missing PDO MySQL extension
• storage/ not writable
• Incomplete ZIP upload — re-upload and extract