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 ('432018b61bdce3c74fa3f08e2d4d1fca', -1, 1752890276, 1752890276, 'd849d8fb', 1, 0, 0)

Line : 189
File : sessions.php