[31-Jan-2026 12:03:20 UTC] PHP Fatal error:  Uncaught mysqli_sql_exception: Cannot add or update a child row: a foreign key constraint fails (`mehrnaz_chat`.`messages`, CONSTRAINT `messages_ibfk_1` FOREIGN KEY (`room_id`) REFERENCES `rooms` (`id`) ON DELETE CASCADE) in /home/mehrnaz/public_html/mernaz.ir/api/dm_send.php:34
Stack trace:
#0 /home/mehrnaz/public_html/mernaz.ir/api/dm_send.php(34): mysqli_stmt->execute()
#1 {main}
  thrown in /home/mehrnaz/public_html/mernaz.ir/api/dm_send.php on line 34
[31-Jan-2026 12:03:23 UTC] PHP Fatal error:  Uncaught mysqli_sql_exception: Cannot add or update a child row: a foreign key constraint fails (`mehrnaz_chat`.`messages`, CONSTRAINT `messages_ibfk_1` FOREIGN KEY (`room_id`) REFERENCES `rooms` (`id`) ON DELETE CASCADE) in /home/mehrnaz/public_html/mernaz.ir/api/dm_send.php:34
Stack trace:
#0 /home/mehrnaz/public_html/mernaz.ir/api/dm_send.php(34): mysqli_stmt->execute()
#1 {main}
  thrown in /home/mehrnaz/public_html/mernaz.ir/api/dm_send.php on line 34
[31-Jan-2026 12:06:22 UTC] PHP Fatal error:  Uncaught mysqli_sql_exception: Cannot add or update a child row: a foreign key constraint fails (`mehrnaz_chat`.`messages`, CONSTRAINT `messages_ibfk_1` FOREIGN KEY (`room_id`) REFERENCES `rooms` (`id`) ON DELETE CASCADE) in /home/mehrnaz/public_html/mernaz.ir/api/dm_send.php:34
Stack trace:
#0 /home/mehrnaz/public_html/mernaz.ir/api/dm_send.php(34): mysqli_stmt->execute()
#1 {main}
  thrown in /home/mehrnaz/public_html/mernaz.ir/api/dm_send.php on line 34
