PHP error

Non-static method General_functions::create_submenu() should not be called statically, assuming $this from incompatible context

/home/dascomla/public_html/es/protected/views/aboutus/index.php(7)

01 <div class="topic">
02         <?php echo CHtml::image(Yii::app()->request->baseUrl.'/images/product_06.gif'); ?>
03     <?php echo CHtml::link(Yii::t('menu','Inicio'),array('/')) ?>
04         <?php echo CHtml::image(Yii::app()->request->baseUrl.'/images/arrow.gif'); ?>
05     <?php echo CHtml::link(Yii::t('menu','Nosotros'),array('/Aboutus')) ?>
06 </div>
07 <?php echo General_functions::create_submenu('nosotros',1); ?>
08 <div style="min-height: 600px; line-height: 25px; text-align: justify; border: solid 1px #ccc; padding: 0;" class="col-lg-9 col-md-9 col-sm-12 col-xs-12 borde">
09 
10     <?php echo CHtml::image(Yii::app()->baseUrl . '/images/text/es/aboutus0.jpg', 'alt', array('class' => 'img-responsive','style' => 'border-radius: 5px;')); ?>
11     <div id="articles" style="padding: 5px;">
12         <h4 class="prod-title"></h4>
13         <hr>
14         <?php
15         foreach ($article as $a) { ?>
16              <div style="margin: 5px; margin-left: 15px; text-align: justify;" >
17             <h3 class="prod-title"><?php echo $a->name ?></h3>    
18             <?php echo $a->article;?>    
19              </div>     

Stack Trace

#4
+
 /home/dascomla/public_html/es/protected/controllers/AboutusController.php(14): CController->render("index", array("article" => array(Articles)))
09     {
10     $dataProvider = new CActiveDataProvider('ProductsTypes');
11         $article = Articles::model()->findall("id='12'");
12         $this->render('index', array(
13         'article' => $article,
14         ));
15     }
16         public function actionaboutUs() {
17         $this->actionIndex();
18         }
19         public function actioncases() {
#12
+
 /home/dascomla/public_html/es/index.php(13): CApplication->run()
08 defined('YII_DEBUG') or define('YII_DEBUG',true);
09 // specify how many levels of call stack should be shown in each log message
10 defined('YII_TRACE_LEVEL') or define('YII_TRACE_LEVEL',3);
11 
12 require_once($yii);
13 Yii::createWebApplication($config)->run();
2024-03-28 15:13:19 Apache Yii Framework/1.1.14