Fatal error: Method Mage_Catalog_Helper_Image::__toString() must not throw an exception, caught Exception: Deprecated functionality: iconv_set_encoding(): Use of iconv.internal_encoding is deprecated in /var/www/magento3/includes/src/Zend_Validate_Hostname.php on line 1557 in /var/www/magento3/includes/src/Expert_Blog_Model_Observer.php on line 626