why is the code of my theme showing on the homepage?

Hi,

I have just downloaded and uploaded a theme but the is code displayed on the home page, see here: https://conservatories.x10host.com/

The theme is supposed to look like this: https://theme.co/x/demo/integrity/1/

I’m new to this, any quick fixes?

This is a fresh wordpress install
I have tried to manually upload the theme via ftp and also through wp-admin but the result is the same.
I’m thinking I have a bad download?