Answered

Thank you for contacting us, our team is happy to help you get W3 Total Cache installed on your website.

Are you installing the plugin through your WordPress dashboard or are you uploading the plugin to your server's file system directly?  If you are using the WordPress dashboard, are you installing it using the manual upload option or downloading from the WordPress repository?

Once we get that information our team will have a better idea of where the problem is coming from and hopefully point us towards a solution.