diff --git a/Block/Adminhtml/Config/Form/Field/FixAll.php b/Block/Adminhtml/Config/Form/Field/FixAll.php
index 85310ad..e015242 100644
--- a/Block/Adminhtml/Config/Form/Field/FixAll.php
+++ b/Block/Adminhtml/Config/Form/Field/FixAll.php
@@ -8,16 +8,34 @@ class FixAll extends \Magento\Config\Block\System\Config\Form\Field
 
     public function render(AbstractElement $element)
     {
+        $url = $this->_urlBuilder->getUrl('swissup/theme/fixAll');
+        $cacheUrl = $this->getUrl('adminhtml/cache/index');;
         $buttonText = __("Fix All");
         return <<<HTML
 <tr>
     <td colspan="100">
         <div class="button-container">
-            <button id="fix-all-themes" class="button action-configure" type="button"><span>$buttonText</span></button>
-        </div>
-        <script type="text/javascript">
+            <button id="fix-all-themes" class="button action-configure" type="button"
+                onclick="jQuery.ajax({
+                    url: '{$url}',
+                    method: 'POST',
+                    dataType: 'json',
+                    showLoader: true,
+                    data: {
+                        form_key:   window.FORM_KEY
+                    },
+                    success: function(data) {
+                        alert(data.message);
+                        jQuery('#row_swissup_core_troubleshooting_virtualcheck .themes-table table').hide();
+                        jQuery('#fix-all-themes').hide();
+                        jQuery('<tr><td>Please, <a href=&quot;{$cacheUrl}&quot; target=_blank>clear the cache</a></td></tr>').insertAfter('#row_swissup_core_troubleshooting_virtualcheck');
 
-        </script>
+                    },
+                    error: function() {
+                        alert('An error occurred while updating theme types.');
+                    }
+                })"><span>$buttonText</span></button>
+        </div>
     </td>
 </tr>
 HTML;
diff --git a/Controller/Adminhtml/Theme/FixAll.php b/Controller/Adminhtml/Theme/FixAll.php
new file mode 100644
index 0000000..a216a5c
--- /dev/null
+++ b/Controller/Adminhtml/Theme/FixAll.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Swissup\Core\Controller\Adminhtml\Theme;
+
+use Magento\Framework\Controller\ResultFactory;
+
+class FixAll extends \Magento\Backend\App\Action
+{
+    const ADMIN_RESOURCE = 'Swissup_Core::theme_fixall';
+
+    public function execute()
+    {
+        $resultJson = $this->resultFactory->create(ResultFactory::TYPE_JSON);
+        $resultJson->setData(['message' => 'Virtual themes fixed. Please, clear the cache!']);
+        
+        $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
+        
+        $connection = $objectManager->create('\Magento\Framework\App\ResourceConnection')->getConnection();
+        $tableName = $connection->getTableName('theme');
+        $connection->update($tableName, ['type' => 0]);
+
+        return $resultJson;
+    }
+}
