Receiving 500 error after installing theme

Hello,

I am getting a 500 error in my Google webmaster tools for this URL:

https://www.designworld.se/wp-content/themes/Newsmag/

I have turned on PHP error messages for the hosting and it gives me this error:

Fatal error: Call to undefined function get_header() in /customers/c/f/2/designworld.se/httpd.www/wp-content/themes/Newsmag/index.php on line 6

I have also been in contact with the hosting support and they say it’s the theme causing the problem..

Can you help me solve this?

Basically nobody should be trying to access your theme directly via that URL… might be a hacker, hence the 500 error.

This also happens “once” when switching themes or updating theme.

For example I updated my theme on the 29th of Dec. got one 500 error. None since.

Technically it’s a WordPress issue, not a theme issue; since what happens when installing or updating theme, is that for a few minutes something is trying to be cached from the location of theme when it might not be there.

If you get a ton of errors, it’s somebody trying to access your theme folder, which is not normal … it’s like somebody trying to access your wp-includes folder; not a normal link anywhere on the site.