I'm getting this error on my site...
- 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
I've tried deactivating all the plugins to check that and no joy. I've also added this to my .htaccess file...
AddOutputFilterByType DEFLATE text/html text/plain text/xml