Exception: Notice: Use of undefined constant ICONV_IMPL - assumed 'ICONV_IMPL' in /home/exambullun/public_html/vendor/magento/framework/Stdlib/StringUtils.php on line 162 in /home/exambullun/public_html/vendor/magento/framework/App/ErrorHandler.php:61 Stack trace: #0 /home/exambullun/public_html/vendor/magento/framework/Stdlib/StringUtils.php(162): Magento\Framework\App\ErrorHandler->handler(8, 'Use of undefine...', '/home/exambullu...', 162, Array) #1 /home/exambullun/public_html/vendor/magento/framework/HTTP/Header.php(120): Magento\Framework\Stdlib\StringUtils->cleanString('CCBot/2.0 (http...') #2 /home/exambullun/public_html/vendor/magento/framework/HTTP/Header.php(57): Magento\Framework\HTTP\Header->_getHttpCleanValue('HTTP_USER_AGENT', true) #3 /home/exambullun/public_html/vendor/magento/framework/App/Response/HeaderProvider/XssProtection.php(47): Magento\Framework\HTTP\Header->getHttpUserAgent() #4 /home/exambullun/public_html/vendor/magento/framework/App/Response/HeaderManager.php(42): Magento\Framework\App\Response\HeaderProvider\XssProtection->getValue() #5 /home/exambullun/public_html/vendor/magento/framework/Interception/Interceptor.php(121): Magento\Framework\App\Response\HeaderManager->beforeSendResponse(Object(Magento\Framework\App\Response\Http\Interceptor)) #6 /home/exambullun/public_html/vendor/magento/framework/Interception/Interceptor.php(153): Magento\Framework\App\Response\Http\Interceptor->Magento\Framework\Interception\{closure}() #7 /home/exambullun/public_html/generated/code/Magento/Framework/App/Response/Http/Interceptor.php(117): Magento\Framework\App\Response\Http\Interceptor->___callPlugins('sendResponse', Array, Array) #8 /home/exambullun/public_html/vendor/magento/framework/App/Http.php(185): Magento\Framework\App\Response\Http\Interceptor->sendResponse() #9 /home/exambullun/public_html/vendor/magento/framework/App/Http.php(156): Magento\Framework\App\Http->handleDeveloperMode(Object(Magento\Framework\App\Bootstrap), Object(Exception)) #10 /home/exambullun/public_html/vendor/magento/framework/App/Bootstrap.php(261): Magento\Framework\App\Http->catchException(Object(Magento\Framework\App\Bootstrap), Object(Exception)) #11 /home/exambullun/public_html/index.php(39): Magento\Framework\App\Bootstrap->run(Object(Magento\Framework\App\Http)) #12 {main}