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 ('1047048fa5a6b8d8e6a6d81a5db94178', -1, 1747394427, 1747394427, '030fb0cc', 2, 0, 0)

Line : 190
File : sessions.php