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 ('13ff8647a85b53b428becf7281e8e2ea', -1, 1747785296, 1747785296, '038d0ed2', 2, 0, 0)

Line : 190
File : sessions.php