Fatal error: Uncaught Error: Call to undefined function each()
in /usr/home/haw1006dsjts/html/ja2/wp-content/themes/biz-vektor/inc/theme-options.php on line 731

Call stack:

1. biz_vektor_output_keycolorcss()
   wp-includes/class-wp-hook.php:324
2. WP_Hook::apply_filters()
   wp-includes/class-wp-hook.php:348
3. WP_Hook::do_action()
   wp-includes/plugin.php:517
4. do_action()
   wp-includes/general-template.php:3064
5. wp_head()
   wp-content/themes/biz-vektor/header.php:22
6. require_once()
   wp-includes/template.php:810
7. load_template()
   wp-includes/template.php:745
8. locate_template()
   wp-includes/general-template.php:48
9. get_header()
   wp-content/themes/biz-vektor/single.php:1
10. include()
    wp-includes/template-loader.php:106
11. require_once()
    wp-blog-header.php:19
12. require()
    index.php:17