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 ('b952f0e2a7c95f0af0b2965666a52de3', -1, 1748652749, 1748652749, '0d3af5c9', -2, 0, 0)

Line : 189
File : sessions.php