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 ('03502f99cd3e9a18c8861a536aa0f4e1', -1, 1714349614, 1714349614, '039061bd', 21, 0)

Line : 158
File : sessions.php