[Hummingbird] GZIP Compression issue

this said "Your server may not have the "deflate" module enabled (mod_deflate for Apache, ngx_http_gzip_module for NGINX)"

But I checked my cloud server and everything is installed 'MOD_DEFLATE' for Apache.

It shows (Hummingbird) that both CSS and Javascript is not compressed but the HTML is compressed.

Please advice on what to do I want to improve my site speed.