Website looks strange on mobile

My website suddenly looks like this when I visit the website on my phone.
I want the full website to be displayed. How can I force it to show the full site always?

Fixed - I disabled mobile theme from Jetpack

I have made a blogging website on WordPress. Right now I am using generate press theme but I am not satisfied with its design. Would you please recommend any better and faster theme?



Sorry, but its not our theme, please contact theme author