phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('406dd3cd41ed9c919950b84253c79c69', -1, 1770784238, 1770784238, 'd849d814', 0, 0, 0)

Line : 193
File : sessions.php