Could not insert new anti bot question registration information

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a3bef2a40cd2d1845a81d85488759cfd' for key 'PRIMARY'

INSERT INTO phpbb_anti_bot_quest_regconfirm (confirm_id, session_id, start_time) VALUES ('3b7e642921af1059e0985579d61732c8', 'a3bef2a40cd2d1845a81d85488759cfd', 1790274224)

Line : 124
File : usercp_register.php