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 ('49a6da47a8df860512922f79d580999a', -1, 1752129599, 1752129599, 'd849d8bf', -9, 0, 0)

Line : 190
File : sessions.php