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) VALUES ('bfc4f4a68aa007bbc8dd692b9efe5398', -1, 1714736877, 1714736877, '0d3a2717', -4, 0)

Line : 158
File : sessions.php