Magento server under maintenance after install the extension

Question

I have installed the extension through Magento connect manager. After installing extension, my site is under maintenance. I have tried these things:

1. Clear Cache and Session
2. I will change the index.php file

I did not see the maintenance.flag file in var folder.

Anyone help me.

Answer 1

Kindly remove maintenance.flag file formed at the root folder of your magento installation.

Answer 2

You can found "maintenance.flag" file in Magento root directory instead "var" directory. First you remove maintenance.flag file then download the extension file and upload manually.