qtranslate XT broke the site progrocks.gr

[santoriniwebmaster]

{ "default_language": "en", "enabled_languages": { "1": "en", "2": "EL" }, "locale": { "en": "en_US", "EL": "el" }, "date_format": { "en": "%A %B %e%q, %Y", "EL": "%d/%m/%y" }, "time_format": { "en": "%I:%M %p", "EL": "%H:%M" }, "url_mode": 2, "use_strftime": 3, "filter_options_mode": 0, "language_name_case": 0, "detect_browser_language": false, "hide_untranslated": true, "show_menu_alternative_language": false, "show_displayed_language_prefix": false, "show_alternative_content": true, "hide_default_language": false, "use_secure_cookie": false, "header_css_on": true, "text_field_filters": [], "disable_client_cookies": false, "url_info": { "cookie_lang_front": "EL", "cookie_lang_admin": "en", "cookie_front_or_admin_found": true, "scheme": "https", "host": "staging.progrocks.gr", "path": "/wp-admin/admin-ajax.php", "query": "action=admin_debug_info", "path-base": "", "wp-path": "/wp-admin/admin-ajax.php", "language_neutral_path": true, "http_referer": "https://staging.progrocks.gr/wp-admin/options-general.php?page=qtranslate-xt", "referer_admin": true, "doing_front_end": false, "lang_cookie_admin": "en", "lang_admin": "en", "language": "en", "set_cookie": false }, "language": "en", "editor_mode": 0, "highlight_mode": 1, "auto_update_mo": true, "hide_lsb_copy_content": false, "lsb_style": "simple-buttons.css", "config_files": [ "./i18n-config.json", "./i18n-config/plugins/types/i18n-config.json", "./i18n-config/plugins/types/i18n-config.json" ], "custom_fields": [], "custom_field_classes": [], "post_type_excluded": [], "admin_enabled_modules": { "acf": true, "all-in-one-seo-pack": true, "events-made-easy": true, "jetpack": true, "google-site-kit": true, "gravity-forms": true, "woo-commerce": true, "wp-seo": true, "slugs": false }, "translator": {}, "qtrans_compatibility": false }

{ "PHP_VERSION": "7.4.33", "WP_VERSION": "6.2.2", "QTX_VERSION": "3.15.2", "Plugins": [ "Backuply 1.1.6", "Classic Editor 1.6.3", "Contact Form 7 Multilingual 1.2.1", "Contact Form With Captcha 1.6.8", "Display PHP Version 1.8", "Jetpack 12.3", "List category posts 0.88.1", "LiteSpeed Cache 5.5", "MetaSlider 3.33.0", "qTranslate-XT 3.15.2", "SiteOrigin CSS 1.5.6", "TablePress 2.1.5", "The Events Calendar 6.1.3", "Advanced Editor Tools 5.9.0", "Toolset Types 3.4.19", "MailChimp for WordPress Multilingual 0.0.3" ] }

it keeps showing both languages on titles and on the content of the posts / please advise ! created staging.progrocks.gr to try to save it ! thank you