Status of error #4640979: new

"Duplicate entry 3.140.196.3 for key user_name (INSERT INTO `users` (user_name) \n VALUES (3.140.196.3);)"
"Duplicate entry 3.140.196.3 for key user_name (INSERT INTO `users` (user_name) \n VALUES (3.140.196.3);) from mysql->insert"

Program trace:
#0 /var/www/default/src/main/php/model/user/user.php(414): mysql->insert(user_name, 3.140.196.3, -3)\n#1 /var/www/default/src/main/php/model/user/user.php(222): user->save(-2)\n#2 /var/www/default/http/formula_edit.php(42): user->get(-1)\n#3 {main}