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 ('9bf163c8a58c72d0b24b67c3cf9787e2', -1, 1713870561, 1713870561, '038efa72', -2, 0, 0)

Line : 187
File : sessions.php