phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'd6a80f1fcdec31a227e0f4a3f0a98c84' 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 ('d6a80f1fcdec31a227e0f4a3f0a98c84', -1, 1556007530, 1556007530, '0350e034', 11, 0, 0)

Line : 198
File : sessions.php