Fatal error: Uncaught Error: Call to undefined function env() in /home/mydemotec/public_html/windstream/vendor/berkayk/onesignal-laravel/config/onesignal.php:11 Stack trace: #0 {main} thrown in /home/mydemotec/public_html/windstream/vendor/berkayk/onesignal-laravel/config/onesignal.php on line 11