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 ('b6f0bce5ab0deced884dfda1e22939ec', -1, 1749969214, 1749969214, 'd849d805', -9, 0, 0)

Line : 190
File : sessions.php