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 ('5a368c9a26e577d0bad605a5743d76fd', -1, 1730421178, 1730421178, '030fdcc9', -1, 0, 0)

Line : 195
File : sessions.php