Fixes

modules/admin/views/user/view.php

@@ -40,7 +40,7 @@ $this->params['breadcrumbs'][] = $this->title;
             ],
             [
                 'attribute' => 'room_id',
-                'value' => $model->room->name,
+                'value' => $model->room ? $model->room->name : null,
             ],
             'api_key',
             'created_at:datetime',

views/profile/index.php

@@ -44,7 +44,7 @@ $this->title = 'Профиль ' . $user->username;
             </tr>
             <tr>
                 <th scope="row">Комната</th>
-                <td><?= $user->room->name ?></td>
+                <td><?= $user->room ? $user->room->name : null ?></td>
             </tr>
             <?php if (Yii::$app->user->id === $user->id): ?>
             <tr>