fix cache manager

ot_templating/Classes/Controller/OtCustomizerController.php

@@ -105,7 +105,7 @@ class OtCustomizerController extends ActionController {
         ;
 
         // Clear the site's cache
-        CacheManager::clearSiteCache($rootPageUid);
+        OtCacheManager::clearSiteCache($rootPageUid);
 
         $this->forward(
             'index',