added check for db and request panel, disabled output if one is missing

extensions/debug/views/default/index.php

@@ -31,13 +31,14 @@ $this->title = 'Yii Debugger';
 
 	<div class="container">
 		<div class="row">
-			<h1>Available Debug Data</h1>
-
 <?php
 
-$timeFormatter = extension_loaded('intl') ? Yii::createObject(['class' => 'yii\i18n\Formatter']) : Yii::$app->formatter;
+if (isset($this->context->module->panels['db']) && isset($this->context->module->panels['request'])) {
+
+	echo "			<h1>Available Debug Data</h1>";
+	$timeFormatter = extension_loaded('intl') ? Yii::createObject(['class' => 'yii\i18n\Formatter']) : Yii::$app->formatter;
 
-echo GridView::widget([
+	echo GridView::widget([
 		'dataProvider' => $dataProvider,
 		'filterModel' => $searchModel,
 		'rowOptions' => function ($model, $key, $index, $grid) use ($searchModel) {
@@ -105,7 +106,13 @@ echo GridView::widget([
 				'label' => 'Status code'
 			],
 		],
-]); ?>
+	]);
+
+} else {
+	echo "<div class='alert alert-warning'>No data available. Panel <code>db</code> or <code>request</code> not found.</div>";
+}
+
+?>
 		</div>
 	</div>
 </div>