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, session_admin) VALUES ('d3ac5326716a6c90a419e8175d1a86ce', -1, 1754865732, 1754865732, 'd849d8fd', 2, 0, 0)

Line : 189
File : sessions.php