Hi Saguaros - thanks for getting back to me again.
Can you confirm your IP for me please?
I don't understand how I'm blocking Vietnam :-( I used to have geographic blocking turned on in Admintools, but but Akeeba have removed this function. I've checked through my htaccess file and I can't see any blocking code in there.
And I don't know how to whitelist Vietnam - I can't see any option to do this.
As an alternative I have temporarily disabled Admintools - could you try again please?
I'm sorry this is causing you problems.
Best wishes
Ian