Can't get GZIP to work


I cannot get the Compression to work in Hummingbird - it comes up with the following error message.

- Your server may not have the "deflate" module enabled (mod_deflate for Apache, ngx_http_gzip_module for NGINX)
- Another plugin may be interfering with the configuration

I have spoken to my hosting provider and insert a piece of code in htaccess to make sure all the appropriate permissions are in place but it still isn't working. Has anyone else had this problem?