Fatal error: Uncaught Error: Call to undefined function create_function()
in /home/thevisu4/public_html/wp-content/themes/developer/functions.php on line 73

Call stack:

1. include()
   wp-settings.php:672
2. require_once('/home/thevisu4/public_html/wp-settings.php')
   wp-config.php:102
3. require_once('/home/thevisu4/public_html/wp-config.php')
   wp-load.php:50
4. require_once('/home/thevisu4/public_html/wp-load.php')
   wp-blog-header.php:13
5. require('/home/thevisu4/public_html/wp-blog-header.php')
   index.php:17