phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd397c97c362d7d6f8fb163fb06cda6bb' 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 ('d397c97c362d7d6f8fb163fb06cda6bb', -1, 1764685268, 1764685268, 'd849d893', 2, 0, 0)

Line : 187
File : sessions.php