diff --git a/helpers/lang.php b/helpers/lang.php
index 5071bbf..d352397 100644
--- a/helpers/lang.php
+++ b/helpers/lang.php
@@ -39,12 +39,9 @@
       "eu" => "Euskera",
       "fr" => "Français",
       "it" => "Italiano",
-      "hu" => "Magyar",
-      "nl" => "Nederlands",
       "pl" => "Polski",
       "ru" => "Русский",
-      "sk" => "Slovenčina",
-      "zh" => "中文"
+      "sk" => "Slovenčina"
     ];
 
     /**
diff --git a/lang/el.php b/lang/el.php
index 9045b2f..2583049 100644
--- a/lang/el.php
+++ b/lang/el.php
@@ -1,5 +1,5 @@
 <?php
-/* μlogger Version 1.1-beta Μετάφραση: 2021-01-21
+/* μlogger
  *
  * Copyright(C) 2017 Bartek Fabiszewski (www.fabiszewski.net)
  *
@@ -19,7 +19,7 @@
 
 // default language for translations
 
-// strings only used in setup - Μόνο για την εγκατάσταση
+// strings only used in setup
 $langSetup["dbconnectfailed"] = "Αποτυχία σύνδεσης στη Βάση Δεδομένων.";
 $langSetup["serversaid"] = " Ο Server λέει: %s"; // substitutes server error message
 $langSetup["checkdbsettings"] = "Παρακαλώ ελέγξτε τις ρυθμίσεις της Βάση Δεδομένων στο 'config.php'";
diff --git a/lang/en.php b/lang/en.php
index 0c9dfc6..3d3e4e0 100644
--- a/lang/en.php
+++ b/lang/en.php
@@ -166,7 +166,7 @@ $lang["colornormal"] = "Marker color";
 $lang["colorstart"] = "Start marker color";
 $lang["colorstop"] = "Stop marker color";
 $lang["colorextra"] = "Extra marker color";
-$lang["colorhilite"] = "Hilite marker color";
+$lang["colorhilite"] = "Highlight marker color";
 $lang["uploadmaxsize"] = "Maximum upload size (MB)";
 $lang["ollayers"] = "OpenLayers layer";
 $lang["layername"] = "Layer name";
diff --git a/lang/es.php b/lang/es.php
index edda01d..501a360 100644
--- a/lang/es.php
+++ b/lang/es.php
@@ -101,14 +101,14 @@ $lang["edituser"] = "Editar usuario";
 $lang["servererror"] = "Error del servidor";
 $lang["allrequired"] = "Todos los campos son necesarios";
 $lang["passnotmatch"] = "Las contraseñas no coinciden";
-$lang["oldpassinvalid"] = "Wrong old password";
-$lang["passempty"] = "Empty password";
-$lang["loginempty"] = "Empty login";
-$lang["passstrengthwarn"] = "Invalid password strength";
+$lang["oldpassinvalid"] = "Contraseña anterior incorrecta ";
+$lang["passempty"] = "Contraseña vacía ";
+$lang["loginempty"] = "Usuario vacío";
+$lang["passstrengthwarn"] = "Seguridad de la contraseña no válida ";
 $lang["actionsuccess"] = "Acción completada correctamente";
 $lang["actionfailure"] = "Ha ocurrido un error";
 $lang["notauthorized"] = "Usuario no autorizado";
-$lang["userunknown"] = "User unknown";
+$lang["userunknown"] = "Usuario desconocido";
 $lang["userdelwarn"] = "Precaución!\n\nVas a eliminar permanentemente al usuario %s, junto con todas sus rutas y posiciones.\n\n¿Estás seguro?"; // substitutes user login
 $lang["editinguser"] = "Estás editando el usuario %s"; // substitutes user login
 $lang["selfeditwarn"] = "No puedes editar tu propio usuario";
@@ -166,7 +166,7 @@ $lang["colornormal"] = "Color del marcador";
 $lang["colorstart"] = "Color del marcador de inicio";
 $lang["colorstop"] = "Color del marcador de final";
 $lang["colorextra"] = "Color del marcador extra";
-$lang["colorhilite"] = "Color del marcador de Hilite";
+$lang["colorhilite"] = "Color del marcador resaltado";
 $lang["uploadmaxsize"] = "Tamaño máximo de carga (MB)";
 $lang["ollayers"] = "Capa OpenLayers";
 $lang["layername"] = "Nombre de la capa";
diff --git a/lang/hu.php b/lang/hu.php
index b8525bf..ed56a8d 100644
--- a/lang/hu.php
+++ b/lang/hu.php
@@ -166,7 +166,7 @@ $lang["colornormal"] = "Marker color";
 $lang["colorstart"] = "Start marker color";
 $lang["colorstop"] = "Stop marker color";
 $lang["colorextra"] = "Extra marker color";
-$lang["colorhilite"] = "Hilite marker color";
+$lang["colorhilite"] = "Highlight marker color";
 $lang["uploadmaxsize"] = "Maximum upload size (MB)";
 $lang["ollayers"] = "OpenLayers layer";
 $lang["layername"] = "Layer name";
diff --git a/lang/nl.php b/lang/nl.php
index 3518569..e7b7295 100644
--- a/lang/nl.php
+++ b/lang/nl.php
@@ -166,7 +166,7 @@ $lang["colornormal"] = "Marker color";
 $lang["colorstart"] = "Start marker color";
 $lang["colorstop"] = "Stop marker color";
 $lang["colorextra"] = "Extra marker color";
-$lang["colorhilite"] = "Hilite marker color";
+$lang["colorhilite"] = "Highlight marker color";
 $lang["uploadmaxsize"] = "Maximum upload size (MB)";
 $lang["ollayers"] = "OpenLayers layer";
 $lang["layername"] = "Layer name";
diff --git a/lang/zh.php b/lang/zh.php
index 09ea69b..ed4652f 100644
--- a/lang/zh.php
+++ b/lang/zh.php
@@ -166,7 +166,7 @@ $lang["colornormal"] = "Marker color";
 $lang["colorstart"] = "Start marker color";
 $lang["colorstop"] = "Stop marker color";
 $lang["colorextra"] = "Extra marker color";
-$lang["colorhilite"] = "Hilite marker color";
+$lang["colorhilite"] = "Highlight marker color";
 $lang["uploadmaxsize"] = "Maximum upload size (MB)";
 $lang["ollayers"] = "OpenLayers layer";
 $lang["layername"] = "Layer name";