phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b9c5ab60ce16362421d1531eec4d66a2' for key 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b9c5ab60ce16362421d1531eec4d66a2', -1, 1715784143, 1715784143, '340f46bf', 15, 0, 0)

Line : 187
File : sessions.php