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 ('2a2aa7fc4f0948775ce2fd9f4c3c0b05', -1, 1754583033, 1754583033, 'd849d88b', 3, 0, 0)

Line : 189
File : sessions.php