Fatal error: Uncaught Error: Class "Zend_Form_Element_Xhtml" not found in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\diablomedia\zendframework1-captcha\src\Zend\Form\Element\Captcha.php:38 Stack trace: #0 {main} thrown in C:\SHC\xampp\htdocs\shc_mobile_backend\vendor\diablomedia\zendframework1-captcha\src\Zend\Form\Element\Captcha.php on line 38