enable logging

app/Libs/Zimbra/Components/Api/Soap/Services/Create/CreateAccountAlias.php

@@ -60,7 +60,7 @@ class CreateAccountAlias extends ApiService
             __FUNCTION__,
             $this->api->account->getLastResult(),
             'debug',
-            $this->api->account->getLastErrorCode()
+            $this->api->account->getLastResult()->getLastErrorCode()
         );
 
         /**