phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('0566ad74d44e8646dadcedc4cb38ea8f', -1, 1711703744, 1711703744, '2cd32382', 2, 0, 0)

Line : 187
File : sessions.php