Warning: require(db.php): Failed to open stream: No such file or directory in /home/mut2622/public_html/ajax_send_message.php on line 8

Fatal error: Uncaught Error: Failed opening required 'db.php' (include_path='.:/opt/alt/php80/usr/share/pear:/opt/alt/php80/usr/share/php:/usr/share/pear:/usr/share/php') in /home/mut2622/public_html/ajax_send_message.php:8 Stack trace: #0 {main} thrown in /home/mut2622/public_html/ajax_send_message.php on line 8