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 ('6501f45feb1ca3b004238c1b04141bb5', -1, 1730883472, 1730883472, '038a2096', -1, 0, 0)

Line : 195
File : sessions.php