facing problem after publishing my website

Hi 
I have already publish my website, but the problem is on first page where you choose your country location if you choose any country that contain non english letters for example: 
<asp:ListItem Value="????????">(KSA) ????????</asp:ListItem>
then it suppose to appear on browser tab like this: Berava- ???????? but its appear unknown letters. where if you choose for example: <asp:ListItem Value="Australia">Australia</asp:ListItem> then it will work fine and it will appear on browser tab Berava - Australia as well the flag of the country and change button on the top of page where that not happening with others countries. Note: on my local host (my laptop) its working fine. 
You can check the problem by visit www.berava.com