Fatal error: Uncaught Error: syntax error, unexpected 'endif' (T_ENDIF)
in /home/ns21.tube/htdocs/wp-content/themes/ns21/header.php on line 184

Call stack:

1. load_template()
   wp-includes/template.php:745
2. locate_template()
   wp-includes/general-template.php:48
3. get_header()
   wp-content/themes/ns21/single.php:11
4. include('/home/ns21.tube/htdo...emes/ns21/single.php')
   wp-includes/template-loader.php:106
5. require_once('/home/ns21.tube/htdo.../template-loader.php')
   wp-blog-header.php:19
6. require('/home/ns21.tube/htdocs/wp-blog-header.php')
   index.php:17