Notice: Undefined variable: params in /home/m2user/public_html/index.php on line 86

Fatal error: Uncaught TypeError: Argument 2 passed to Magento\Framework\App\Bootstrap::create() must be of the type array, null given, called in /home/m2user/public_html/index.php on line 86 and defined in /home/m2user/public_html/vendor/magento/framework/App/Bootstrap.php:121 Stack trace: #0 /home/m2user/public_html/index.php(86): Magento\Framework\App\Bootstrap::create('/home/m2user/pu...', NULL) #1 {main} thrown in /home/m2user/public_html/vendor/magento/framework/App/Bootstrap.php on line 121