^ ErrorException {#958
  #message: "Attempt to read property "signature" on null"
  #code: 0
  #file: "/var/www/html/certificateGenerator/app/Http/Controllers/CertificateController.php"
  #line: 114
  #severity: E_WARNING
  trace: {
    /var/www/html/certificateGenerator/app/Http/Controllers/CertificateController.php:114 {
      App\Http\Controllers\CertificateController->checkCertificate($hashId) …
      › $certificate = Certificate::findOrFail($certificateID)->first();
      › $signatureBase64 = base64_encode(file_get_contents($this->filesystem['signatures'].$certificate->signature));
      › $base64Src = 'data:'.'png'.';base64,'.$signatureBase64;
      arguments: {
        2
        "Attempt to read property "signature" on null"
        "/var/www/html/certificateGenerator/app/Http/Controllers/CertificateController.php"
        114
      }
    }
    /var/www/html/certificateGenerator/vendor/illuminate/container/BoundMethod.php:36 {
      Illuminate\Container\BoundMethod::Illuminate\Container\{closure} …
      › return static::callBoundMethod($container, $callback, function () use ($container, $callback, $parameters) {
      ›     return $callback(...array_values(static::getMethodDependencies($container, $callback, $parameters)));
      › });
      arguments: {
        $hashId: "sitemap.xml"
      }
    }
    /var/www/html/certificateGenerator/vendor/illuminate/container/Util.php:40 {
      Illuminate\Container\Util::unwrapIfClosure($value) …
      › {
      ›     return $value instanceof Closure ? $value() : $value;
      › }
    }
    /var/www/html/certificateGenerator/vendor/illuminate/container/BoundMethod.php:93 {
      Illuminate\Container\BoundMethod::callBoundMethod($container, $callback, $default) …
      › 
      ›     return Util::unwrapIfClosure($default);
      › }
      arguments: {
        $value: Closure() {#4 …}
      }
    }
    /var/www/html/certificateGenerator/vendor/illuminate/container/BoundMethod.php:37 {
      Illuminate\Container\BoundMethod::call($container, $callback, array $parameters = [], $defaultMethod = null) …
      ›         return $callback(...array_values(static::getMethodDependencies($container, $callback, $parameters)));
      ›     });
      › }
      arguments: {
        $container: Laravel\Lumen\Application {#2 …}
        $callback: array:2 [ …2]
        $default: Closure() {#4 …}
      }
    }
    /var/www/html/certificateGenerator/vendor/illuminate/container/Container.php:651 {
      Illuminate\Container\Container->call($callback, array $parameters = [], $defaultMethod = null) …
      › {
      ›     return BoundMethod::call($this, $callback, $parameters, $defaultMethod);
      › }
      arguments: {
        $container: Laravel\Lumen\Application {#2 …}
        $callback: array:2 [ …2]
        $parameters: array:1 [ …1]
        $defaultMethod: null
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:389 {
      Laravel\Lumen\Application->callControllerCallable(callable $callable, array $parameters = []) …
      › return $this->prepareResponse(
      ›     $this->call($callable, $parameters)
      › );
      arguments: {
        $callback: array:2 [ …2]
        $parameters: array:1 [ …1]
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:355 {
      Laravel\Lumen\Application->callLumenController($instance, $method, $routeInfo) …
      › return $this->callControllerCallable(
      ›     [$instance, $method], $routeInfo[2]
      › );
      arguments: {
        $callable: array:2 [ …2]
        $parameters: array:1 [ …1]
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:329 {
      Laravel\Lumen\Application->callControllerAction($routeInfo) …
      › if ($instance instanceof LumenController) {
      ›     return $this->callLumenController($instance, $method, $routeInfo);
      › } else {
      arguments: {
        $instance: App\Http\Controllers\CertificateController {#31 …}
        $method: "checkCertificate"
        $routeInfo: array:3 [ …3]
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:282 {
      Laravel\Lumen\Application->callActionOnArrayBasedRoute($routeInfo) …
      › if (isset($action['uses'])) {
      ›     return $this->prepareResponse($this->callControllerAction($routeInfo));
      › }
      arguments: {
        $routeInfo: array:3 [ …3]
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:267 {
      Laravel\Lumen\Application->handleFoundRoute($routeInfo) …
      › return $this->prepareResponse(
      ›     $this->callActionOnArrayBasedRoute($routeInfo)
      › );
      arguments: {
        $routeInfo: array:3 [ …3]
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:237 {
      Laravel\Lumen\Application->handleDispatcherResponse($routeInfo) …
      ›     case Dispatcher::FOUND:
      ›         return $this->handleFoundRoute($routeInfo);
      › }
      arguments: {
        $routeInfo: array:3 [ …3]
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:173 {
      Laravel\Lumen\Application->Laravel\Lumen\Concerns\{closure} …
      › return $this->handleDispatcherResponse(
      ›     $this->createDispatcher()->dispatch($method, $pathInfo)
      › );
      arguments: {
        $routeInfo: array:3 [ …3]
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:429 {
      Laravel\Lumen\Application->sendThroughPipeline(array $middleware, Closure $then) …
      › 
      ›     return $then($this->make('request'));
      › }
      arguments: {
        Laravel\Lumen\Http\Request {#19 …}
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:175 {
      Laravel\Lumen\Application->dispatch($request = null) …
      ›         );
      ›     });
      › } catch (Throwable $e) {
      arguments: {
        $middleware: []
        $then: Closure($request) {#37 …}
      }
    }
    /var/www/html/certificateGenerator/vendor/laravel/lumen-framework/src/Concerns/RoutesRequests.php:112 {
      Laravel\Lumen\Application->run($request = null) …
      › {
      ›     $response = $this->dispatch($request);
      › 
      arguments: {
        $request: null
      }
    }
    /var/www/html/certificateGenerator/public/index.php:28 {
      › 
      › $app->run();
      › 
    }
  }
}