Help! I’m desperately trying to get my “alone” theme installed. I keep getting this message...

Help! I’m rying to get my “wallcart” theme installed.
Fatal error : Can’t use function return value in write context in /home/sutithu1/public_html/wp-content/themes/wallcart/header.php on line 50

I’m using wordpress version 5.0.3

Thank you for help!

Which PHP version installed in your site? If you can’t find it, ask your hosting provider.

Oh thank you!

your theme recently released so you have 6 month support included in your purchased. please contact Author Support. Don’t worry just contact Author. Author will be very happy to assist you.