phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'ef09b420df9910a84a5609d2a9df038b' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('ef09b420df9910a84a5609d2a9df038b', -1, 1754160372, 1754160372, 'd849d88f', -9, 0, 0)

Line : 187
File : sessions.php