Status of error #4627850: new

"Duplicate entry 3.144.199.9 for key user_name (INSERT INTO `users` (user_name) \n VALUES (3.144.199.9);)"
"Duplicate entry 3.144.199.9 for key user_name (INSERT INTO `users` (user_name) \n VALUES (3.144.199.9);) from mysql->insert"

Program trace:
#0 /var/www/default/src/main/php/model/user/user.php(414): mysql->insert(user_name, 3.144.199.9, -3)\n#1 /var/www/default/src/main/php/model/user/user.php(222): user->save(-2)\n#2 /var/www/default/http/formula_test.php(45): user->get(-1)\n#3 {main}