phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '51b47d8a4d7142b28a3a8b5480535757' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('51b47d8a4d7142b28a3a8b5480535757', -1, 1761360570, 1761360570, 'd849d80a', -9, 0)

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