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 ('0574766f6482a9c1813b262b500c931b', -1, 1730419127, 1730419127, '0395ed59', -1280, 0, 0)

Line : 195
File : sessions.php