phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '4d97729482c84393877ffa64fe2dcbf8' 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 ('4d97729482c84393877ffa64fe2dcbf8', -1, 1776764391, 1776764391, 'd849d93b', 2, 0, 0)

Line : 187
File : sessions.php