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 ('b7f3a34b4e4d2fd051f05074d985d91a', -1, 1714649176, 1714649176, '039368f8', 13, 0)

Line : 158
File : sessions.php