Could not insert new anti bot question registration information

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd15b3758f2f4c28112e2d5cf0db2f61e' for key 'PRIMARY'

INSERT INTO phpbb_anti_bot_quest_regconfirm (confirm_id, session_id, start_time) VALUES ('144abdd9d46d16ac95ddc388bfc279de', 'd15b3758f2f4c28112e2d5cf0db2f61e', 1790285353)

Line : 124
File : usercp_register.php