TypeError thrown

Argument 1 passed to PhpOffice\PhpSpreadsheet\Reader\Xlsx::readColumnsAndRowsAttributes() must be an instance of SimpleXMLElement, boolean given, called in /home/refugio1/public_html/wp-content/plugins/wpdatatables/lib/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xlsx.php on line 894