fixed crash at save mode getting

source/libublsettingsui-gtk3.c

@@ -579,6 +579,7 @@ template_main_window *setup_window(){
     if (yon_char_is_empty(__yon_config_mode)){
         int size;
         config_str cnf = yon_config_load(SAVE_MODE_GET_COMMAND,&size);
+        if (cnf){
             __yon_config_mode=yon_char_new(cnf[0]);
             if (__yon_config_mode[strlen(__yon_config_mode)-1]=='\n') __yon_config_mode[strlen(__yon_config_mode)-1]='\0';
             yon_char_parsed_free(cnf,size);
@@ -605,6 +606,9 @@ template_main_window *setup_window(){
                 __yon_config_mode=NULL;
                 gtk_widget_hide(ModeStatusImage);
             }
+        } else {
+            gtk_widget_hide(ModeStatusImage);
+        }
     }
     gtk_widget_show(widgets->Window);
     return widgets;