Problem with % symbol

Hello guys !
Sorry in advance for my bad English, i'm french and i'll try to explain you what is my problem with this theme.

Since yesterday, i'm trying to put the symbol '%' in a page. But when i click on the 'update' button, i have a 'Page not found'

And when i try it with a standard theme, like eleven theme, that's work, i can put a % in my body page.

Can you help me?

Thanks !

 

I have this page when i try to put a % symbol.

 

Hi,

Greetings from InkThemes!

Could you please provide us 'URL' of your site so that we can better assist you?

Thanks & Regards!
Priyanka
InkThemes.com

 

Hi,
thanks for your reply, but i have discovered that the problem is not the theme, but wordpress or the server.

Thanks Priya :=