GZIP not enabled error!

Hello, good eveening.

I tried to enable GZIP on Hummingbird plugin but i got the following error:

" 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 am using Apache 2.4 and Mod_deflate is currently installed and activated. What to do?

[rootNuno ~]# httpd -M | grep deflate
deflate_module (shared)

Thanks