Update models.

app/Models/Configuration.php

@@ -42,11 +42,9 @@ class Configuration extends Model
      */
     protected $casts
         = [
-            'created_at' => 'date',
-            'updated_at' => 'date',
+            'created_at' => 'datetime',
+            'updated_at' => 'datetime',
         ];
-    /** @var array */
-    protected $dates = ['created_at', 'updated_at', 'deleted_at'];
     protected $table = 'configuration';
 
     /**