phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO nuke_bbsessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c6ae5cc71e20fbe0d4380ebc5c7c6e80', '1', '1283605412', '1283605412', '266bbf75', '1', '0', '0')

Line : 220
File : sessions.php