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 ('ad09ff3a8a831c0761a1c7a2d59ed6f3', -1, 1737420771, 1737420771, '126109a9', -7, 0, 0)

Line : 187
File : sessions.php