diff --git a/source/ubl-settings-datetime.cc b/source/ubl-settings-datetime.cc
index 6638135..d251243 100644
--- a/source/ubl-settings-datetime.cc
+++ b/source/ubl-settings-datetime.cc
@@ -336,7 +336,7 @@ bool MainWindow::focus_ntp(GdkEventFocus* event){
         }
         if (flag_error==false){
             cmd = "/usr/bin/ubconfig set network NTPSERVERS=\"" + str_ntp + "\"";
-            this->call(cmd.c_str());
+            response_cmd = system(cmd.c_str());
         }
         else{
             lblMessage->set_text(_("An invalid character is entered"));
@@ -347,6 +347,34 @@ bool MainWindow::focus_ntp(GdkEventFocus* event){
     return true;
 }
 
+struct MainWindow::Result<string> MainWindow::wrapper_call(string cmd){
+    struct Result<string> obj_result;
+    string response=this->call(cmd);
+    if ((response.find("(null)")==std::string::npos) && (response.length()!=0)){
+        if (response.find("=")!=std::string::npos){
+            if (response.find("\n")!=std::string::npos){
+                response = response.substr(response.find("=")+1,response.length());
+                response = response.substr(0,response.find("\n"));
+                obj_result.response = response;
+                obj_result.error = 0;
+            }
+            else{
+                obj_result.response = response;
+                obj_result.error = 1;
+            }
+        }
+        else{
+            obj_result.response = response;
+            obj_result.error = 2;
+        }
+    }
+    else{
+        obj_result.response = response;
+        obj_result.error = 3;
+    }
+    return obj_result;
+}
+
 void MainWindow::event_entry_cbDhcp(){
     Glib::ustring str_dhcp = cbDhcp->get_active_text();
     int activ_index =  cbDhcp->get_active_row_number();
@@ -357,9 +385,17 @@ void MainWindow::event_entry_cbDhcp(){
             response_cmd=system(cmd.c_str());
             txtNtpServer->set_sensitive(false);
             cbDhcp->set_active(activ_index);
-            string response = this->call("/usr/bin/ubconfig --source=default get NTPSERVERS_DEFAULT");
-            this->str_remove(response, "\n");
-            txtNtpServer->set_text(response);
+            cmd = "/usr/bin/ubconfig --source=default get NTPSERVERS_DEFAULT";
+            struct Result<string> obj_result = this->wrapper_call(cmd);
+            if (obj_result.error==0){
+                txtNtpServer->set_text(obj_result.response);
+            }
+            else{
+                //string error = "";
+                //error = string(_("ERROR")) + "\n" + obj_result.response;
+                //lblMessage->set_text(error);
+                //mess_dchp->show();
+            }
         }
         else if (activ_index==1){
             btnUpdateDateTime->set_sensitive(false);
@@ -375,15 +411,23 @@ void MainWindow::event_entry_cbDhcp(){
             if (txtNtpServer->get_text().find("default")!=std::string::npos){
                 txtNtpServer->set_text("");
             }
-            string str_dhcp = this->call("/usr/bin/ubconfig get network NTPSERVERS");
-            if ((str_dhcp.find("(null)")==std::string::npos) && (str_dhcp.find("default")==std::string::npos)){
-                str_dhcp = str_dhcp.substr(str_dhcp.find("=")+1,str_dhcp.length());
-                str_dhcp = str_dhcp.substr(0,str_dhcp.find("\n"));
-                if (str_dhcp!="dhcp" && str_dhcp!="(null)"){  
-                    txtNtpServer->set_text(str_dhcp);
-                }
+            string  cmd = "/usr/bin/ubconfig get network NTPSERVERS"; 
+            struct Result<string> obj_result = this->wrapper_call(cmd);
+            if (obj_result.error==0){
+                if (obj_result.response.find("default")==std::string::npos){
+                    if (obj_result.response.find("dhcp")==std::string::npos){  
+                        txtNtpServer->set_text(obj_result.response);
+                    } 
                 cbDhcp->set_active(activ_index);
-                }   
+                }
+            }
+            else if (obj_result.error==3){}
+            else{
+                string error = "";
+                error = string(_("ERROR")) + "\n" + obj_result.response;
+                lblMessage->set_text(error);
+                mess_dchp->show();
+            } 
         }
         else if (activ_index==3){
             string cmd = "/usr/bin/ubconfig remove network NTPSERVERS";
@@ -433,6 +477,7 @@ void MainWindow::get_calendar(){
 }
 
 void MainWindow::calendar_show(){
+    cout << 2222 << endl;
     if (year==0){
         time_t now = time(0);
         tm *ltm = localtime(&now);
@@ -451,13 +496,14 @@ void MainWindow::calendar_show(){
 }
 
 void MainWindow::enry_dhcp_mess(){
-    string str_dhcp = this->call("/usr/bin/ubconfig get network NTPSERVERS");
-    if (str_dhcp.find("(null)")==std::string::npos){
+    string cmd = "/usr/bin/ubconfig get network NTPSERVERS";
+    struct Result<string> obj_result = this->wrapper_call(cmd);
+    if (obj_result.error==0){
+        string str_dhcp = obj_result.response;
         btnUpdateDateTime->set_sensitive(false);
         str_dhcp = str_dhcp.substr(str_dhcp.find("=")+1,str_dhcp.length());
         str_dhcp = str_dhcp.substr(0,str_dhcp.find("\n"));
         if (str_dhcp=="dhcp"){
-            
             cbDhcp->set_active(1);
             txtNtpServer->set_text("");
             txtNtpServer->set_sensitive(false);
@@ -465,10 +511,18 @@ void MainWindow::enry_dhcp_mess(){
         else if (str_dhcp=="default"){
             btnUpdateDateTime->set_sensitive(false);
             cbDhcp->set_active(0);
-            string response = this->call("/usr/bin/ubconfig --source=default get NTPSERVERS_DEFAULT");
-            this->str_remove(response, "\n");
-            txtNtpServer->set_text(response);
+            string cmd  = "/usr/bin/ubconfig --source=default get NTPSERVERS_DEFAULT";
+            struct Result<string> obj_result = this->wrapper_call(cmd);
             txtNtpServer->set_sensitive(false);
+            if (obj_result.error==0){
+                txtNtpServer->set_text(obj_result.response);
+            }
+            else{
+                //string error = "";
+                //error = string(_("ERROR")) + "\n" + obj_result.response;
+                //lblMessage->set_text(error);
+                //mess_dchp->show();
+            }
         }
         else{
             btnUpdateDateTime->set_sensitive(false);
@@ -500,21 +554,31 @@ void MainWindow::get_config(){
     this->update_hour_minute();
     this->update_calendar();
     this->enry_dhcp_mess(); 
-    string read_reg_zon_cfg = this->call("/usr/bin/ubconfig --source global get clock ZONE");
-    if ((read_reg_zon_cfg != "") && (strstr(read_reg_zon_cfg.c_str() ,"(null)")==NULL)){
-        
-        auto arr_reg_zone_glob = this->split_region_zone(read_reg_zon_cfg);
-        this->append_region_zone(arr_reg_zone_glob[0],arr_reg_zone_glob[1],cbRegionGlob,cbZoneGlob);      
+    string cmd = "/usr/bin/ubconfig --source global get clock ZONE";
+    struct Result<string> obj_result = this->wrapper_call(cmd);
+    if (obj_result.error==0){
+        auto arr_reg_zone_glob = this->split_region_zone(obj_result.response);    
+        if (arr_reg_zone_glob[0].length()!=0){
+            this->append_region_zone(arr_reg_zone_glob[0],arr_reg_zone_glob[1],cbRegionGlob,cbZoneGlob);      
+        }
+        else{
+            this->append_region_zone("Africa","Abidjan", cbRegion, cbZone);   
+        }
+    
     }
     else {
         this->append_region_zone("Africa","Abidjan",cbRegionGlob,cbZoneGlob);      
     }  
-    
-    read_reg_zon_cfg = this->call("/usr/bin/ubconfig --source system get clock ZONE");
-    if ((read_reg_zon_cfg != "") && (strstr(read_reg_zon_cfg.c_str() ,"(null)")==NULL)){
-        
-        auto arr_reg_zone_glob = this->split_region_zone(read_reg_zon_cfg);
-        this->append_region_zone(arr_reg_zone_glob[0],arr_reg_zone_glob[1], cbRegion, cbZone);      
+    cmd = "/usr/bin/ubconfig --source system get clock ZONE";
+    struct Result<string> obj_result_1 = this->wrapper_call(cmd);
+    if (obj_result_1.error==0){
+        auto arr_reg_zone = this->split_region_zone(obj_result_1.response);
+        if (arr_reg_zone[0].length()!=0){
+            this->append_region_zone(arr_reg_zone[0],arr_reg_zone[1], cbRegion, cbZone);      
+        }
+        else{
+            this->append_region_zone("Africa","Abidjan", cbRegion, cbZone);   
+        }
     }
     else {
         this->append_region_zone("Africa","Abidjan", cbRegion, cbZone);      
@@ -522,14 +586,18 @@ void MainWindow::get_config(){
 }
 
 array<string, 2> MainWindow::split_region_zone(string read_reg_zon_cfg){
-    read_reg_zon_cfg = read_reg_zon_cfg.substr(read_reg_zon_cfg.find("=")+1,read_reg_zon_cfg.length());
-    read_reg_zon_cfg = read_reg_zon_cfg.substr(0,read_reg_zon_cfg.find("\n"));
-    string str_filling_reg = read_reg_zon_cfg.substr(0,read_reg_zon_cfg.find("/"));
-    string str_filling_zon = read_reg_zon_cfg.substr(read_reg_zon_cfg.find("/")+1,read_reg_zon_cfg.length());
-    str_filling_zon = str_filling_zon.substr(0,str_filling_zon.find("\n"));
     array<string, 2> arr;
-    arr[0] = str_filling_reg;
-    arr[1] = str_filling_zon;
+    if (read_reg_zon_cfg.find("/")!=std::string::npos){
+        string str_filling_reg = read_reg_zon_cfg.substr(0,read_reg_zon_cfg.find("/"));
+        string str_filling_zon = read_reg_zon_cfg.substr(read_reg_zon_cfg.find("/")+1,read_reg_zon_cfg.length());
+    
+        arr[0] = str_filling_reg;
+        arr[1] = str_filling_zon;
+    }
+    else{
+        arr[0] = "";
+        arr[1] = "";
+    }
     return arr;
 
 }
diff --git a/source/ubl-settings-datetime.h b/source/ubl-settings-datetime.h
index a22dc6f..a3266cc 100644
--- a/source/ubl-settings-datetime.h
+++ b/source/ubl-settings-datetime.h
@@ -35,49 +35,6 @@ private:
 
 class MainWindow : public Gtk::ApplicationWindow {
     public:
-        MainWindow(BaseObjectType* obj, Glib::RefPtr<Gtk::Builder> const& builder);
-        MainWindow(Glib::RefPtr<Gtk::Builder> const& builder);
-        virtual ~MainWindow() = default;
-        void post_entry_data();
-        void lacalization();
-        void settings();
-        void flag_block_gui();
-        void add_CSS();
-        void get_builder();
-        void event();
-        void gui_mess_close();
-        bool focus_ntp(GdkEventFocus* event);
-        void event_entry_cbDhcp();
-        void get_calendar();
-        void calendar_show();
-        void enry_dhcp_mess();
-        void get_config();
-        void enter_zone();
-        void enter_zone_glob();
-        void set_ntp_toggle();
-        void append_region_zone(string region, string zone, Gtk::ComboBoxText *tmpCbReg, Gtk::ComboBoxText *tmpCbZone);
-        string call(string cmd);
-        void append_zone();
-        void append_zone_glob();
-        void update_time_date();
-        void update_hour_minute();
-        void update_calendar();
-        void read_file();
-        void parse_text_date();
-        void hardware_clock();
-        void set_ntp_toggle_glob();
-        int check_root();
-        void gui_exit();
-        bool gui_exit_2(GdkEventAny* event);
-        void stop_ntp();
-        void wind_close_ntp();
-        void wrapper_update_time_date();
-        string zone_file_read(string zone);
-        void sort_zone(vector<string> *time_reg_map_local,vector<string> *time_reg_map);
-        array<string, 2> split_region_zone(string read_reg_zon_cfg);
-        string str_remove(std::string& source, const std::string to_remove);
-        vector<std::string> split(const std::string &s, char delim);
-    private:
         Glib::RefPtr<Gtk::Builder> builder;
         Gtk::Button *btnUpdateDateTime;
         Gtk::Button *btnChooseDate;
@@ -137,6 +94,11 @@ class MainWindow : public Gtk::ApplicationWindow {
         string str_zone="";
         string str_zoneGlob;
         int response_cmd;
+        template<typename Type>
+        struct Result{
+            Type response;
+            int error;
+        };
         string array_region[14]={
             "Africa",
             "America",
@@ -152,6 +114,52 @@ class MainWindow : public Gtk::ApplicationWindow {
             "Indian",
             "Mexico",
             "US"};
+    public:
+        MainWindow(BaseObjectType* obj, Glib::RefPtr<Gtk::Builder> const& builder);
+        MainWindow(Glib::RefPtr<Gtk::Builder> const& builder);
+        virtual ~MainWindow() = default;
+        void post_entry_data();
+        void lacalization();
+        void settings();
+        void flag_block_gui();
+        void add_CSS();
+        void get_builder();
+        void event();
+        void gui_mess_close();
+        bool focus_ntp(GdkEventFocus* event);
+        void event_entry_cbDhcp();
+        void get_calendar();
+        void calendar_show();
+        void enry_dhcp_mess();
+        void get_config();
+        void enter_zone();
+        void enter_zone_glob();
+        void set_ntp_toggle();
+        void append_region_zone(string region, string zone, Gtk::ComboBoxText *tmpCbReg, Gtk::ComboBoxText *tmpCbZone);
+        string call(string cmd);
+        void append_zone();
+        void append_zone_glob();
+        void update_time_date();
+        void update_hour_minute();
+        void update_calendar();
+        void read_file();
+        void parse_text_date();
+        void hardware_clock();
+        void set_ntp_toggle_glob();
+        int check_root();
+        void gui_exit();
+        bool gui_exit_2(GdkEventAny* event);
+        void stop_ntp();
+        void wind_close_ntp();
+        void wrapper_update_time_date();
+        string zone_file_read(string zone);
+        void sort_zone(vector<string> *time_reg_map_local,vector<string> *time_reg_map);
+        array<string, 2> split_region_zone(string read_reg_zon_cfg);
+        string str_remove(std::string& source, const std::string to_remove);
+        vector<std::string> split(const std::string &s, char delim);
+        struct Result<string> wrapper_call(string cmd);
+    
+        
 };
 
 class SettingsPlug : public Gtk::Plug{
diff --git a/ubl-settings-datetime_ru.po b/ubl-settings-datetime_ru.po
index c414d4c..e6017e0 100644
--- a/ubl-settings-datetime_ru.po
+++ b/ubl-settings-datetime_ru.po
@@ -115,6 +115,9 @@ msgstr "Синхронизировать аппаратное время"
 msgid "Warning!"
 msgstr "Внимание!"
 
+msgid "ERROR"
+msgstr "ОШИБКА"
+
 msgid "America"
 msgstr "Америка"