phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'f3cebf84c9d56a90bba78ebd815165c7' 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 ('f3cebf84c9d56a90bba78ebd815165c7', -1, 1758163503, 1758163503, 'd849d822', 5, 0, 0)

Line : 187
File : sessions.php