Fatal error: Uncaught Error: Class 'WpOrg\Requests\Utility\CaseInsensitiveDictionary' not found in /home/refref/public_html/wp-includes-20250406223650/Requests/src/Response/Headers.php:20 Stack trace: #0 {main} thrown in /home/refref/public_html/wp-includes-20250406223650/Requests/src/Response/Headers.php on line 20