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 ('3f8d15e9ab7862bbc84c8c79c00f0397', -1, 1714621945, 1714621945, '12e2de0c', 7, 0)

Line : 158
File : sessions.php