phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '798953c767723c954d1c30c7d7577b72' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('798953c767723c954d1c30c7d7577b72', -1, 1777413509, 1777413509, 'd849d97f', -9, 0)

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