Can't enable deflate module required by Hummingbird

Hi!

The title says it all. I'm getting the following warning from Hummingbird:
" gzip is not working properly:

- 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

If re-checking and restarting does not resolve, please check with your host or open a support ticket with us."

I've followed the instructions provided here: https://br.godaddy.com/help/enabling-mod-deflate-with-your-hosting-account-6946. Still nothing.

Any ideas?

Thanks!