Enabling browser cache with hummingbird

Hi support
When i try to cache my website it got this error
Browser Caching is not working properly:
- Your server may not have the "expires" module enabled (mod_expires for Apache, ngx_http_headers_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.

and my webhotel say mod_expires run
it the same problem with Gzip
You have support access to skysolution.dk
can you help