Does it work on Laravel 8?

[DesarrolloProm]

I'm trying to implement this but I´m getting this:
"message": "Trying to access array offset on value of type null",
"exception": "ErrorException",
"file": "C:\wamp64\www\frontpromesamedical\vendor\spatie\laravel-webhook-server\src\WebhookCall.php",
"line": 34,
"trace": [
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\spatie\laravel-webhook-server\src\WebhookCall.php",
"line": 34,
"function": "handleError",
"class": "Illuminate\Foundation\Bootstrap\HandleExceptions",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\app\Http\Controllers\ExternalController.php",
"line": 249,
"function": "create",
"class": "Spatie\WebhookServer\WebhookCall",
"type": "::"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\Controller.php",
"line": 54,
"function": "store",
"class": "App\Http\Controllers\ExternalController",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\ControllerDispatcher.php",
"line": 45,
"function": "callAction",
"class": "Illuminate\Routing\Controller",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\Route.php",
"line": 254,
"function": "dispatch",
"class": "Illuminate\Routing\ControllerDispatcher",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\Route.php",
"line": 197,
"function": "runController",
"class": "Illuminate\Routing\Route",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\Router.php",
"line": 693,
"function": "run",
"class": "Illuminate\Routing\Route",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 128,
"function": "Illuminate\Routing\{closure}",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\Middleware\SubstituteBindings.php",
"line": 50,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\Routing\Middleware\SubstituteBindings",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\VerifyCsrfToken.php",
"line": 78,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\VerifyCsrfToken",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\View\Middleware\ShareErrorsFromSession.php",
"line": 49,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\View\Middleware\ShareErrorsFromSession",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Session\Middleware\StartSession.php",
"line": 121,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Session\Middleware\StartSession.php",
"line": 63,
"function": "handleStatefulRequest",
"class": "Illuminate\Session\Middleware\StartSession",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\Session\Middleware\StartSession",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse.php",
"line": 37,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Cookie\Middleware\EncryptCookies.php",
"line": 67,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\Cookie\Middleware\EncryptCookies",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 103,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\Router.php",
"line": 695,
"function": "then",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\Router.php",
"line": 670,
"function": "runRouteWithinStack",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\Router.php",
"line": 636,
"function": "runRoute",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Routing\Router.php",
"line": 625,
"function": "dispatchToRoute",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php",
"line": 166,
"function": "dispatch",
"class": "Illuminate\Routing\Router",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 128,
"function": "Illuminate\Foundation\Http\{closure}",
"class": "Illuminate\Foundation\Http\Kernel",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\TransformsRequest.php",
"line": 21,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\TransformsRequest",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\TransformsRequest.php",
"line": 21,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\TransformsRequest",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\ValidatePostSize.php",
"line": 27,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\ValidatePostSize",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance.php",
"line": 86,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Illuminate\Foundation\Http\Middleware\PreventRequestsDuringMaintenance",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\fruitcake\laravel-cors\src\HandleCors.php",
"line": 37,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Fruitcake\Cors\HandleCors",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\fideloper\proxy\src\TrustProxies.php",
"line": 57,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 167,
"function": "handle",
"class": "Fideloper\Proxy\TrustProxies",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Pipeline\Pipeline.php",
"line": 103,
"function": "Illuminate\Pipeline\{closure}",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php",
"line": 141,
"function": "then",
"class": "Illuminate\Pipeline\Pipeline",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php",
"line": 110,
"function": "sendRequestThroughRouter",
"class": "Illuminate\Foundation\Http\Kernel",
"type": "->"
},
{
"file": "C:\wamp64\www\frontpromesamedical\public\index.php",
"line": 52,
"function": "handle",
"class": "Illuminate\Foundation\Http\Kernel",
"type": "->"
}
]
}
So I´m wondering if I´m doing something wrong or it's my laravel version.

[badr-alwattar]

I'm facing the same problem, I don't know if the problem is in PHP 8 or laravel 8