Warning: Undefined variable $tpl in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\filp\whoops\src\Whoops\Resources\views\panel_left.html.php on line 2

Fatal error: Uncaught Error: Call to a member function render() on null in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\filp\whoops\src\Whoops\Resources\views\panel_left.html.php:2 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\filp\whoops\src\Whoops\Resources\views\panel_left.html.php on line 2