phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '82b621737930ece2db200ce77b7be479' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('82b621737930ece2db200ce77b7be479', -1, 1771733563, 1771733563, 'd849d890', 6, 0, 0)

Line : 187
File : sessions.php