King of Gamblers

The title doesn't display Vietnamese correctly,where there are marks like this Ê or Ơ etc...

I click on Update in the Dashboard and got the message like " your site will be updated ...", but the update was never complete hence the new release msg.

Is there a way to fix this or upgrade this manually ?  Thank you. 

Which path should I use ? my Dolphin run website url or something like //siteurl/public_htlm/folder of site etc... ?