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 ('f4ff471598fd2c8c76bc7da3ff7f4d20', -1, 1749789328, 1749789328, 'd849d8e6', -9, 0, 0)

Line : 190
File : sessions.php