phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '3951050b5b1c97bf63f9c1827e08d371' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('3951050b5b1c97bf63f9c1827e08d371', -1, 1770301921, 1770301921, 'd849d802', -9, 0)

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