Problem with my site, its down

Hi,

I dont know what happen with my site but now is desconfigured,

I was trying to verify my web with pinterest,
I put the code pinterest gave me in header.php

Appearance – theme-editor.- Theme Header (Header.php)

I inserted this code:

<meta name=”p:domain_verify” content=”2dda6d9a3bd43964847c56070bfdf429″/>

Then when I saved, show me the error:
It has not been possible to contact the site to verify fatal errors, so the PHP change has been reversed. You will have to upload the change to your PHP file by other means, such as using SFTP.

But then the page was desconfigured. Then I went through the cpanel to the file manager and entered the path to the header.php and deleted the code that gave me pinterest was the only thing that file had.

I activate the maintenance mode, if you enter the wordpress you can see how the page is desconfigured as if it did not assume the enfold theme.

Now my site is desconfigured, please I need your help.

Thanks