phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '247c8b8641fc9de699bc0893d378a13c' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('247c8b8641fc9de699bc0893d378a13c', -1, 1772206387, 1772206387, 'd849d834', 2, 0)

Line : 180
File : /www/includes/sessions.php