Fatal error: Uncaught Error: Class 'WPML\ST\MO\WPLocaleProxy' not found
in /home/users/tuban/public_html/tuban.pl/wp-content/plugins/wpml-string-translation/classes/MO/Hooks/LanguageSwitch.php on line 111

Call stack:

1. WPML\S\M\H\LanguageSwitch::changeWpLocale()
   wp-content/plugins/wpml-string-translation/classes/MO/Hooks/LanguageSwitch.php:72
2. WPML\S\M\H\LanguageSwitch::switchToLocale()
   wp-content/plugins/wpml-string-translation/classes/TranslateWpmlString.php:168
3. WPML\ST\TranslateWpmlString::withMOLocale()
   wp-content/plugins/wpml-string-translation/classes/TranslateWpmlString.php:109
4. WPML\ST\TranslateWpmlString::translateByMOFile()
   wp-content/plugins/wpml-string-translation/classes/TranslateWpmlString.php:76
5. WPML\ST\TranslateWpmlString::translate()
   wp-content/plugins/wpml-string-translation/inc/functions.php:271
6. icl_translate()
   wp-content/plugins/wpml-string-translation/inc/functions.php:485
7. wpml_translate_single_string_filter()
   wp-includes/class-wp-hook.php:308
8. WP_Hook::apply_filters()
   wp-includes/plugin.php:205
9. apply_filters()
   wp-content/plugins/woocommerce-multilingual/inc/class-wcml-url-translation.php:641
10. WCML_Url_Translation::translate_taxonomy_base()
    wp-includes/class-wp-hook.php:308
11. WP_Hook::apply_filters()
    wp-includes/plugin.php:205
12. apply_filters()
    wp-includes/taxonomy.php:4650
13. get_term_link()
    wp-content/plugins/sitepress-multilingual-cms/inc/utilities/wpml-languages.class.php:115
14. WPML_Languages::add_tax_url_to_ls_lang()
    wp-content/plugins/sitepress-multilingual-cms/sitepress.class.php:2967
15. SitePress::get_ls_languages()
    wp-content/plugins/sitepress-multilingual-cms/classes/seo/class-wpml-seo-headlangs.php:39
16. WPML_SEO_HeadLangs::head_langs()
    wp-includes/class-wp-hook.php:308
17. WP_Hook::apply_filters()
    wp-includes/class-wp-hook.php:332
18. WP_Hook::do_action()
    wp-includes/plugin.php:517
19. do_action()
    wp-includes/general-template.php:3049
20. wp_head()
    wp-content/themes/tuban-theme/header.php:5
21. require_once()
    wp-includes/template.php:783
22. load_template()
    wp-includes/template.php:718
23. locate_template()
    wp-includes/general-template.php:48
24. get_header()
    wp-content/themes/tuban-theme/woocommerce.php:1
25. include()
    wp-includes/template-loader.php:106
26. require_once()
    wp-blog-header.php:19
27. require()
    index.php:17