phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b777ace76e7c47c31894a9492aa7d147' for key 'PRIMARY'

INSERT INTO oldforum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b777ace76e7c47c31894a9492aa7d147', -1, 1752683852, 1752683852, 'd849d88c', -9, 0, 0)

Line : 187
File : sessions.php