fix sitemap

frontend/modules/sitemap/Sitemap.php

@@ -81,7 +81,7 @@ class Sitemap extends Module
             $urls = array_merge($urls, $model->generateSiteMap());
         }
 
-        $langs = Languages::find()->where(['!=', 'default', 1])->all();
+        $langs = Languages::find()->all();
 
         $sitemapData = $this->createControllerByID('default')->renderPartial('index', [
             'urls' => $urls,

frontend/modules/sitemap/views/default/index.php

@@ -19,7 +19,7 @@ echo '<?xml version="1.0" encoding="UTF-8"?>' . PHP_EOL;
 
             <?php if($langs) :
                 foreach ($langs as $lang) : ?>
-                    <xhtml:link rel="alternate" hreflang="<?=$lang->url?>" href="<?= yii\helpers\Url::to('/'.$lang->url.($url['loc']=='/'?'':'/'.$url['loc']), true) ?>"/>
+                    <xhtml:link rel="alternate" hreflang="<?=$lang->url?>" href="<?= yii\helpers\Url::to((!$lang->default?'/'.$lang->url:'').($url['loc']=='/'?'':'/'.$url['loc']), true) ?>"/>
                 <?php endforeach;
             endif; ?>