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 ('31b1ab202667d03a2346f5388bc80fc9', -1, 1748392574, 1748392574, '0d3b37ed', -9, 0, 0)

Line : 190
File : sessions.php