phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9ef29b705c6b0cad9d34d4cd3c7a6f0e' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('9ef29b705c6b0cad9d34d4cd3c7a6f0e', -1, 1776112236, 1776112236, 'd849d86a', 2, 0, 0)

Line : 187
File : sessions.php