phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'cef28c9b24a05ab080298541cc7bf186' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('cef28c9b24a05ab080298541cc7bf186', -1, 1757996272, 1757996272, 'd849d863', -9, 0, 0)

Line : 187
File : sessions.php