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 ('b40294ab2d736da90bf2d7b1aece642c', -1, 1714440784, 1714440784, '12d954ab', 7, 0)

Line : 158
File : sessions.php