Sydney Theme Not Working - Website Broken

Hi Could you please help with my website?
Now it seems like my website is broken.
It seems like Sydney theme is not functioning. I am not able to update the theme as well.
My website address is intereden.com
Please help on this. Appreciate your support in advance. Thanks!

Hello there,

I’ve replied in your other topic:

Doesn’t it answer the question?

Regards,
Kharis