diff --git a/inc/class-lp-multi-language.php b/inc/class-lp-multi-language.php
deleted file mode 100644
index e773ba84b..000000000
--- a/inc/class-lp-multi-language.php
+++ /dev/null
@@ -1,69 +0,0 @@
-<?php
-defined( 'ABSPATH' ) || exit;
-
-if ( ! class_exists( 'LP_Multi_Language' ) ) {
-	/**
-	 * Class LP_Multi_Language
-	 *
-	 * @author  ThimPress
-	 * @package LearnPress/Clases
-	 * @version 1.0
-	 * @deprecated 4.2.7.4
-	 */
-	class LP_Multi_Language {
-		public static function init() {
-			self::load_plugin_text_domain( LP_PLUGIN_FILE );
-		}
-
-		/**
-		 * Helper function to load text-domain for LP addons.
-		 *
-		 * @param string $path
-		 * @param string $text_domain
-		 * @param string $language_folder
-		 */
-		public static function load_plugin_text_domain( $path, $text_domain = '', $language_folder = 'languages' ) {
-			// Get absolute plugin folder instead of plugin file
-			if ( false !== strpos( $path, '.php' ) ) {
-				$path = dirname( $path );
-			}
-
-			// Plugin folder, such as: learnpress-offline-payment
-			$plugin_folder = basename( $path );
-
-			// If name of text-domain is not set
-			if ( ! $text_domain ) {
-				$text_domain = $plugin_folder;
-			}
-
-			$locale = apply_filters( 'plugin_locale', get_locale(), $text_domain );
-
-			if ( is_admin() ) {
-				load_textdomain( $text_domain, WP_LANG_DIR . "/{$plugin_folder}/{$plugin_folder}-admin-{$locale}.mo" );
-				load_textdomain( $text_domain, WP_LANG_DIR . "/plugins/{$plugin_folder}-admin-{$locale}.mo" );
-			}
-
-			load_textdomain( $text_domain, WP_LANG_DIR . "/{$plugin_folder}/{$plugin_folder}-{$locale}.mo" );
-
-			$mo = WP_CONTENT_DIR . "/plugins/{$plugin_folder}/languages/{$plugin_folder}-{$locale}.mo";
-			load_textdomain( $text_domain, $mo );
-			load_plugin_textdomain( $text_domain, false, plugin_basename( $path ) . '/' . $language_folder );
-		}
-	}
-}
-
-LP_Multi_Language::init();
-
-if ( ! function_exists( 'learn_press_load_plugin_text_domain' ) ) {
-	/**
-	 * Load plugin text domain
-	 *
-	 * @param string $path            - Path to plugin
-	 * @param string $text_domain     - Name of text-domain
-	 * @param string $language_folder - Folder inside the plugin that contains language files
-	 */
-	function learn_press_load_plugin_text_domain( $path, $text_domain = '', $language_folder = '' ) {
-
-		LP_Multi_Language::load_plugin_text_domain( $path, $text_domain, $language_folder );
-	}
-}
diff --git a/inc/class-lp-nonce-helper.php b/inc/class-lp-nonce-helper.php
deleted file mode 100644
index 4939f7353..000000000
--- a/inc/class-lp-nonce-helper.php
+++ /dev/null
@@ -1,88 +0,0 @@
-<?php
-
-/**
- * Class LP_Nonce_Helper
- */
-class LP_Nonce_Helper {
-	/**
-	 * Create nonce for course action.
-	 * Return nonce created with format 'learn-press-$action-$course_id-course-$user_id'
-	 *
-	 * @param string $action [retake, purchase, enroll]
-	 * @param int    $course_id
-	 * @param int    $user_id
-	 *
-	 * @since 3.0.0
-	 *
-	 * @return string
-	 */
-	public static function create_course( $action, $course_id = 0, $user_id = 0 ) {
-		if ( ! $course_id ) {
-			$course_id = get_the_ID();
-		}
-
-		if ( ! $user_id ) {
-			$user_id = get_current_user_id();
-		}
-
-		return wp_create_nonce( sprintf( 'learn-press-%s-course-%s-%s', $action, $course_id, $user_id ) );
-	}
-
-	/**
-	 * Verify nonce for course action.
-	 *
-	 * @param string $nonce
-	 * @param string $action
-	 * @param int    $course_id
-	 * @param int    $user_id
-	 *
-	 * @since 3.0.0
-	 *
-	 * @return bool
-	 * @deprecated 4.1.6.9
-	 */
-	/*public static function verify_course( $nonce, $action, $course_id = 0, $user_id = 0 ) {
-		if ( ! $course_id ) {
-			$course_id = get_the_ID();
-		}
-
-		if ( ! $user_id ) {
-			$user_id = get_current_user_id();
-		}
-
-		return wp_verify_nonce( $nonce, sprintf( 'learn-press-%s-course-%s-%s', $action, $course_id, $user_id ) );
-	}*/
-
-	public static function quiz_action( $action, $quiz_id, $course_id, $ajax = false ) {
-		?>
-		<input type="hidden" name="quiz-id" value="<?php echo esc_attr( $quiz_id ); ?>">
-		<input type="hidden" name="course-id" value="<?php echo esc_attr( $course_id ); ?>">
-		<?php if ( $ajax ) { ?>
-			<input type="hidden" name="lp-ajax" value="<?php echo esc_attr( $action ); ?>-quiz">
-		<?php } else { ?>
-			<input type="hidden" name="lp-<?php echo esc_attr( $action ); ?>-quiz" value="<?php echo esc_attr( $quiz_id ); ?>">
-		<?php } ?>
-		<input type="hidden" name="<?php echo esc_attr( $action ); ?>-quiz-nonce" value="<?php echo wp_create_nonce( sprintf( 'learn-press/quiz/%s/%s-%s-%s', $action, get_current_user_id(), $course_id, $quiz_id ) ); ?>">
-		<?php
-	}
-
-	/**
-	 * @deprecated 4.1.6.9
-	 */
-	/*public static function verify_quiz_action( $action, $nonce = '', $quiz_id = 0, $course_id = 0 ) {
-		if ( ! $nonce ) {
-			$nonce = LP_Request::get_post( $action . '-quiz-nonce' );
-		}
-
-		if ( ! $quiz_id ) {
-			global $lp_course_item;
-			$quiz_id = $lp_course_item instanceof LP_Course_Item ? $lp_course_item->get_id() : 0;
-		}
-
-		if ( ! $course_id ) {
-			$course_id = get_the_ID();
-		}
-
-		return wp_verify_nonce( $nonce, sprintf( 'learn-press/quiz/%s/%s-%s-%s', $action, get_current_user_id(), $course_id, $quiz_id ) );
-	}*/
-}
diff --git a/learnpress.php b/learnpress.php
index 3ba87a862..150726a36 100644
--- a/learnpress.php
+++ b/learnpress.php
@@ -259,7 +259,6 @@ public function includes() {
 		 * @return void
 		 */
 		private function include_files_global() {
-			//include_once 'inc/class-lp-multi-language.php';
 
 			// Filter query .
 			include_once 'inc/Filters/class-lp-filter.php';