diff --git a/app/Exceptions/Handler.php b/app/Exceptions/Handler.php
index c580e7b3feae..3ab3c69eb143 100644
--- a/app/Exceptions/Handler.php
+++ b/app/Exceptions/Handler.php
@@ -18,6 +18,7 @@ use Illuminate\Auth\Access\AuthorizationException;
 use Illuminate\Auth\AuthenticationException;
 use Illuminate\Database\Eloquent\ModelNotFoundException as ModelNotFoundException;
 use Illuminate\Database\Eloquent\RelationNotFoundException;
+use Illuminate\Encryption\MissingAppKeyException;
 use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
 use Illuminate\Http\Exceptions\ThrottleRequestsException;
 use Illuminate\Http\Request;
@@ -149,6 +150,10 @@ class Handler extends ExceptionHandler
         }
 
         parent::report($exception);
+
+        if (Ninja::isSelfHost() && $exception instanceof MissingAppKeyException) {
+            \Log::error('To setup the app run "cp .env.example .env" followed by "php artisan key:generate"');
+        }
     }
 
     private function validException($exception)
diff --git a/resources/views/portal/ninja2020/layout/error.blade.php b/resources/views/portal/ninja2020/layout/error.blade.php
index b04dacd5bb5b..b42e706d78f0 100644
--- a/resources/views/portal/ninja2020/layout/error.blade.php
+++ b/resources/views/portal/ninja2020/layout/error.blade.php
@@ -10,11 +10,17 @@
         </div>
 
         <div class="col-span-2 h-screen flex">
-            <div class="m-auto md:w-1/2 lg:w-1/4 flex flex-col items-center">
+            <div class="m-auto md:w-1/2 lg:w-1/3 flex flex-col items-center">
                 <span class="flex items-center text-2xl">
                     @yield('code') — @yield('message')
                 </span>
 
+                @if (\App\Utils\Ninja::isSelfHost())
+                    <span class="flex items-center text-1xl">
+                        Check storage/logs for more details
+                    </span>
+                @endif
+
                 <a class="button-link text-sm mt-2" href="{{ url(request()->getSchemeAndHttpHost() . '/client') }}">
                     {{ ctrans('texts.back_to', ['url' => parse_url(request()->getHttpHost())['host'] ?? request()->getHttpHost()]) }}
                 </a>