Uncaught Error: Call to undefined function is_checkout()
in /home/koentert/public_html/wp-content/plugins/recaptcha-woo/recaptcha-woo.php on line 67

Call stack:

1. rcfwc_script('')
   wp-includes/class-wp-hook.php:341
2. WP_Hook::apply_filters(NULL, array)
   wp-includes/class-wp-hook.php:365
3. WP_Hook::do_action(array)
   wp-includes/plugin.php:522
4. do_action('wp_enqueue_scripts')
   wp-includes/script-loader.php:2311
5. wp_enqueue_scripts('')
   wp-includes/class-wp-hook.php:341
6. WP_Hook::apply_filters(NULL, array)
   wp-includes/class-wp-hook.php:365
7. WP_Hook::do_action(array)
   wp-includes/plugin.php:522
8. do_action('wp_head')
   wp-includes/general-template.php:3197
9. wp_head()
   wp-content/themes/blocksy/header.php:21
10. require_once('/home/koentert/publi...s/blocksy/header.php')
    wp-includes/template.php:814
11. load_template('/home/koentert/publi...s/blocksy/header.php', true, array)
    wp-includes/template.php:749
12. locate_template(array, true, true, array)
    wp-includes/general-template.php:48
13. get_header()
    wp-content/themes/blocksy/single.php:10
14. require('/home/koentert/publi...s/blocksy/single.php')
    wp-includes/template.php:816
15. load_template('/home/koentert/publi...s/blocksy/single.php', false, array)
    wp-includes/template.php:749
16. locate_template(array, true, false, array)
    wp-includes/general-template.php:206
17. get_template_part('single')
    wp-content/themes/blocksy/page.php:15
18. include('/home/koentert/publi...mes/blocksy/page.php')
    wp-includes/template-loader.php:125
19. require_once('/home/koentert/publi.../template-loader.php')
    wp-blog-header.php:20
20. require('/home/koentert/public_html/wp-blog-header.php')
    index.php:18