phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '9afdc5521f2fd2ff615aafc5fed0f3d9' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('9afdc5521f2fd2ff615aafc5fed0f3d9', -1, 1770318108, 1770318108, 'd849d802', -9, 0)

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