phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('725c332f307d62a2507d7c9848e9a93b', -1, 1737480909, 1737480909, '1276013f', 5, 0, 0)

Line : 187
File : sessions.php