Fix

app/Http/Livewire/TemporaryCheckStatus.php

@@ -1,19 +0,0 @@
-<?php
-
-namespace App\Http\Livewire;
-
-use App\Models\Application;
-use Livewire\Component;
-
-class TemporaryCheckStatus extends Component
-{
-    public $application_id;
-
-    public function checkStatus() {
-           dd(Application::find(1)->environment);
-    }
-    public function render()
-    {
-        return view('livewire.temporary-check-status');
-    }
-}

app/Models/Database.php

@@ -6,7 +6,7 @@ class Database extends BaseModel
 {
     public function environment()
     {
-        return $this->morphTo();
+        return $this->belongsTo(Environment::class);
     }
     public function destination()
     {