Notice: Undefined variable: params in /home/customer/www/quadbikeparts.co.uk/public_html/index.php on line 83

Fatal error: Uncaught TypeError: Argument 2 passed to Magento\Framework\App\Bootstrap::create() must be of the type array, null given, called in /home/customer/www/quadbikeparts.co.uk/public_html/index.php on line 83 and defined in /home/customer/www/quadbikeparts.co.uk/public_html/vendor/magento/framework/App/Bootstrap.php:120 Stack trace: #0 /home/customer/www/quadbikeparts.co.uk/public_html/index.php(83): Magento\Framework\App\Bootstrap::create('/home/customer/...', NULL) #1 {main} thrown in /home/customer/www/quadbikeparts.co.uk/public_html/vendor/magento/framework/App/Bootstrap.php on line 120