phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'c8c90d2784991213f731423ef7cddb3f' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('c8c90d2784991213f731423ef7cddb3f', -1, 1767370817, 1767370817, 'd849d893', 7, 0)

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