Acesso CNTV

Fatal error: Uncaught mysqli_sql_exception: Incorrect string value: '\xEF\xBF\xBD' for column 'tag' at row 1 in /home/engetech/cntv.org.br/funcoes.php:140 Stack trace: #0 /home/engetech/cntv.org.br/funcoes.php(140): mysqli_query(Object(mysqli), 'INSERT INTO tbl...') #1 /home/engetech/cntv.org.br/conteudos.php(16): sqlTag('13\xEF\xBF\xBD', 'titulo, breve, ...') #2 /home/engetech/cntv.org.br/index.php(318): include('/home/engetech/...') #3 {main} thrown in /home/engetech/cntv.org.br/funcoes.php on line 140