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 ('2f3c05eceab5f0c8cbe11c9ad0d17043', -1, 1714392790, 1714392790, '1276b8ed', 10, 0)

Line : 158
File : sessions.php