Mahmudul,
I am truly sorry to hear that. We take great pride in our plugin and to hear that it has not worked for you is very troubling. We would greatly appreciate the opportunity to see what is going wrong and to rectify the situation. We believe that if 1 person is having issues, there must be others, so in fixing the issue for you we will be helping hundreds of other users.
If you would be so kind, please let us know what version of WordPress you are using, what version of PHP your server uses (if you know) and what other plugins you have installed.
Regards,
Jacob