Fatal error: Uncaught TypeError: Return value of Transpaygo_Banking_Model_Helper_Core::getUserIp() must be of the type string, null returned in /var/www/fonmoney-magento/httpdocs/app/code/local/Transpaygo/Banking/Model/Helper/Core.php:49 Stack trace: #0 /var/www/fonmoney-magento/httpdocs/app/code/local/Transpaygo/Banking/Model/Helper/Core.php(106): Transpaygo_Banking_Model_Helper_Core::getUserIp() #1 /var/www/fonmoney-magento/httpdocs/app/design/frontend/fonmoney/gauss/template/page/html/head.phtml(50): Transpaygo_Banking_Model_Helper_Core::getCountryByIp() #2 /var/www/fonmoney-magento/httpdocs/app/code/local/Mage/Core/Block/Template.php(241): include('/var/www/fonmon...') #3 /var/www/fonmoney-magento/httpdocs/app/code/local/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('frontend/fonmon...') #4 /var/www/fonmoney-magento/httpdocs/app/code/local/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView() #5 /var/www/fonmoney-magento/httpdocs/app/code/core/Mage/Core/Block/Abstract.php(9 in /var/www/fonmoney-magento/httpdocs/app/code/local/Transpaygo/Banking/Model/Helper/Core.php on line 49