Fatal error: Uncaught Error: Class "Smalot\PdfParser\Element\ElementString" not found in /home/toolchatbot/public_html/tool/script/apps/dialogflow/pdf/Element/ElementHexa.php:40 Stack trace: #0 {main} thrown in /home/toolchatbot/public_html/tool/script/apps/dialogflow/pdf/Element/ElementHexa.php on line 40