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 ('1201b9fa17087a0dd05bf6f7db0d35da', -1, 1714690884, 1714690884, '0d3a524f', 16, 0)

Line : 158
File : sessions.php