^ ErrorException {#395
  #message: "Trying to get property 'id' of non-object"
  #code: 0
  #file: "/var/www/html/lam/app/Http/Controllers/PageStaffController.php"
  #line: 31
  #severity: E_NOTICE
  trace: {
    /var/www/html/lam/app/Http/Controllers/PageStaffController.php:31 {
      App\Http\Controllers\PageStaffController->showTeacher($slug) …
      › ->select('c.titulo','c.fecha','c.slug')
      › ->where('cp.profesor_id',$profesor->id)
      › ->orderBy('c.fecha','asc')
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54 {
      Illuminate\Routing\Controller->callAction($method, $parameters) …
      › {
      ›     return $this->{$method}(...array_values($parameters));
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:45 {
      Illuminate\Routing\ControllerDispatcher->dispatch(Route $route, $controller, $method) …
      › if (method_exists($controller, 'callAction')) {
      ›     return $controller->callAction($method, $parameters);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/Route.php:219 {
      Illuminate\Routing\Route->runController() …
      › return $this->controllerDispatcher()->dispatch(
      ›     $this, $this->getController(), $this->getControllerMethod()
      › );
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/Route.php:176 {
      Illuminate\Routing\Route->run() …
      › if ($this->isControllerAction()) {
      ›     return $this->runController();
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/Router.php:681 {
      Illuminate\Routing\Router->Illuminate\Routing\{closure} …
      › return $this->prepareResponse(
      ›     $request, $route->run()
      › );
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:130 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › try {
      ›     return $destination($passable);
      › } catch (Exception $e) {
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/Middleware/SubstituteBindings.php:41 {
      Illuminate\Routing\Middleware\SubstituteBindings->handle($request, Closure $next) …
      › 
      ›     return $next($request);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/VerifyCsrfToken.php:78 {
      Illuminate\Foundation\Http\Middleware\VerifyCsrfToken->handle($request, Closure $next) …
      › ) {
      ›     return tap($next($request), function ($response) use ($request) {
      ›         if ($this->shouldAddXsrfTokenCookie()) {
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/View/Middleware/ShareErrorsFromSession.php:49 {
      Illuminate\View\Middleware\ShareErrorsFromSession->handle($request, Closure $next) …
      › 
      ›     return $next($request);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Session/Middleware/StartSession.php:56 {
      Illuminate\Session\Middleware\StartSession->handle($request, Closure $next) …
      › 
      › $response = $next($request);
      › 
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/AddQueuedCookiesToResponse.php:37 {
      Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse->handle($request, Closure $next) …
      › {
      ›     $response = $next($request);
      › 
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Cookie/Middleware/EncryptCookies.php:67 {
      Illuminate\Cookie\Middleware\EncryptCookies->handle($request, Closure $next) …
      › {
      ›     return $this->encrypt($next($this->decrypt($request)));
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:105 {
      Illuminate\Pipeline\Pipeline->then(Closure $destination) …
      › 
      ›     return $pipeline($this->passable);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/Router.php:683 {
      Illuminate\Routing\Router->runRouteWithinStack(Route $route, Request $request) …
      ›                         );
      ›                     });
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/Router.php:658 {
      Illuminate\Routing\Router->runRoute(Request $request, Route $route) …
      › return $this->prepareResponse($request,
      ›     $this->runRouteWithinStack($route, $request)
      › );
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/Router.php:624 {
      Illuminate\Routing\Router->dispatchToRoute(Request $request) …
      › {
      ›     return $this->runRoute($request, $this->findRoute($request));
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Routing/Router.php:613 {
      Illuminate\Routing\Router->dispatch(Request $request) …
      › 
      ›     return $this->dispatchToRoute($request);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php:170 {
      Illuminate\Foundation\Http\Kernel->Illuminate\Foundation\Http\{closure} …
      › 
      ›     return $this->router->dispatch($request);
      › };
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:130 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › try {
      ›     return $destination($passable);
      › } catch (Exception $e) {
    }
    /var/www/html/lam/vendor/fideloper/proxy/src/TrustProxies.php:57 {
      Fideloper\Proxy\TrustProxies->handle(Request $request, Closure $next) …
      › 
      ›     return $next($request);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php:21 {
      Illuminate\Foundation\Http\Middleware\TransformsRequest->handle($request, Closure $next) …
      › 
      ›     return $next($request);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/TransformsRequest.php:21 {
      Illuminate\Foundation\Http\Middleware\TransformsRequest->handle($request, Closure $next) …
      › 
      ›     return $next($request);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/ValidatePostSize.php:27 {
      Illuminate\Foundation\Http\Middleware\ValidatePostSize->handle($request, Closure $next) …
      › 
      ›     return $next($request);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Foundation/Http/Middleware/CheckForMaintenanceMode.php:63 {
      Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode->handle($request, Closure $next) …
      › 
      ›     return $next($request);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:171 {
      Illuminate\Pipeline\Pipeline->Illuminate\Pipeline\{closure} …
      › $carry = method_exists($pipe, $this->method)
      ›                 ? $pipe->{$this->method}(...$parameters)
      ›                 : $pipe(...$parameters);
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:105 {
      Illuminate\Pipeline\Pipeline->then(Closure $destination) …
      › 
      ›     return $pipeline($this->passable);
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php:145 {
      Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter($request) …
      ›                 ->through($this->app->shouldSkipMiddleware() ? [] : $this->middleware)
      ›                 ->then($this->dispatchToRouter());
      › }
    }
    /var/www/html/lam/vendor/laravel/framework/src/Illuminate/Foundation/Http/Kernel.php:110 {
      Illuminate\Foundation\Http\Kernel->handle($request) …
      › 
      ›     $response = $this->sendRequestThroughRouter($request);
      › } catch (Exception $e) {
    }
    /var/www/html/lam/public/index.php:55 {
      › $response = $kernel->handle(
      ›     $request = Illuminate\Http\Request::capture()
      › );
    }
  }
}