Hummingbird gzip problem

I've problem with gzip compression.
Server apache with mod_deflate installed.

how can I do?

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.