phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '81ebf6ef9f1b57a12a34acd834020ecb' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('81ebf6ef9f1b57a12a34acd834020ecb', -1, 1770332340, 1770332340, 'd849d802', 2, 0)

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