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 ('87a8c5227b2f90747735416073793e7a', -1, 1714243653, 1714243653, '340f3f91', 7, 0)

Line : 158
File : sessions.php