without www my site ( vdopick.com) looks normal but with www (www.vdopick.com) my site looks a little wierd with all chinese letters on the the top and between the site. may i know the reason
Ideally your site should only serve one version and that should be the “default” — meaning if without www is how you have it setup in the WordPress settings, and perhaps also in wp-config.php, then that is the only version you should login to for admin stuff due to the way some permissions, ajax, font permissions, etc. work; also if you use any caching/CDN.
Technically
http://sitename.com
http://www.sitename.com
https://sitename.com
would be three different “domains” for some elements of web scripting, CDN, Google, etc.
So, whatever your “canonical” site name is, and whatever preference you have specified in your Google Search Console account — is what you should use for management of your site.
In other words, ideally your site should only “resolve” to either the non-WWW or the WWW version when typed into web browser and not both.
Often this can be setup with your hosting DNS where one is an A name record and the other is a C name record (ask your host about proper setup of which one version you want to “resolve” when typed into web browser).
A little confusing, but perhaps that might help.
Upshot: not theme related, but more DNS/domain related. 🙂
