diff --git a/src/DaemonQT.cpp b/src/DaemonQT.cpp
index 1e45c58..e9bd592 100644
--- a/src/DaemonQT.cpp
+++ b/src/DaemonQT.cpp
@@ -25,40 +25,40 @@ namespace qt
 	void Worker::startDaemon()
 	{
 		qDebug("Performing daemon start...");
-        //try{
+        try{
             m_Daemon.start();
             qDebug("Daemon started.");
             emit resultReady(false, "");
-        /*}catch(std::exception ex){
+        }catch(std::exception& ex){
             emit resultReady(true, ex.what());
         }catch(...){
             emit resultReady(true, QObject::tr("Error: unknown exception"));
-        }*/
+        }
 	}
 	void Worker::restartDaemon()
 	{
 		qDebug("Performing daemon restart...");
-        //try{
+        try{
             m_Daemon.restart();
             qDebug("Daemon restarted.");
             emit resultReady(false, "");
-        /*}catch(std::exception ex){
+        }catch(std::exception& ex){
             emit resultReady(true, ex.what());
         }catch(...){
             emit resultReady(true, QObject::tr("Error: unknown exception"));
-        }*/
+        }
     }
 	void Worker::stopDaemon() {
 		qDebug("Performing daemon stop...");
-        //try{
+        try{
             m_Daemon.stop();
             qDebug("Daemon stopped.");
             emit resultReady(false, "");
-        /*}catch(std::exception ex){
+        }catch(std::exception& ex){
             emit resultReady(true, ex.what());
         }catch(...){
             emit resultReady(true, QObject::tr("Error: unknown exception"));
-        }*/
+        }
     }
 
     Controller::Controller(DaemonQTImpl& daemon):
diff --git a/src/Saver.h b/src/Saver.h
index bf971fb..44d900a 100644
--- a/src/Saver.h
+++ b/src/Saver.h
@@ -19,7 +19,7 @@ public:
 
 signals:
     void reloadTunnelsConfigAndUISignal(const QString);
-
+    void showPreventedSaveTunnelsConfMessage();
 };
 
 #endif // SAVER_H
diff --git a/src/SaverImpl.cpp b/src/SaverImpl.cpp
index 4b22bf4..5a12c29 100644
--- a/src/SaverImpl.cpp
+++ b/src/SaverImpl.cpp
@@ -9,9 +9,11 @@
 
 #include "mainwindow.h"
 
-SaverImpl::SaverImpl(MainWindow *mainWindowPtr_, QSharedPointer<QList<MainWindowItem*>> configItems_, QSharedPointer<std::map<std::string,TunnelConfig*>> tunnelConfigs_) :
+SaverImpl::SaverImpl(MainWindow *mainWindowPtr_, QList<MainWindowItem*>* configItems_, std::map<std::string,TunnelConfig*>* tunnelConfigs_) :
     configItems(configItems_), tunnelConfigs(tunnelConfigs_), confpath(), tunconfpath(), mainWindowPtr(mainWindowPtr_)
-{}
+{
+    QObject::connect(this, SIGNAL(showPreventedSaveTunnelsConfMessage()), mainWindowPtr, SLOT(showTunnelsPagePreventedMessage()));
+}
 
 SaverImpl::~SaverImpl() {}
 
@@ -37,7 +39,9 @@ bool SaverImpl::save(bool reloadAfterSave, const FocusEnum focusOn, const std::s
     }
 
     //save tunnels config
-    {
+    if (mainWindowPtr->isPreventSaveTunnelsMode()) {
+        emit showPreventedSaveTunnelsConfMessage();
+    }else{
         std::stringstream out;
 
         for (std::map<std::string,TunnelConfig*>::iterator it=tunnelConfigs->begin(); it!=tunnelConfigs->end(); ++it) {
diff --git a/src/SaverImpl.h b/src/SaverImpl.h
index 84c20dd..6f8ab91 100644
--- a/src/SaverImpl.h
+++ b/src/SaverImpl.h
@@ -6,7 +6,6 @@
 
 #include <QObject>
 #include "QList"
-#include "QSharedPointer"
 
 #include "mainwindow.h"
 #include "TunnelConfig.h"
@@ -15,17 +14,16 @@
 class MainWindowItem;
 class TunnelConfig;
 
-class SaverImpl : public Saver
-{
+class SaverImpl : public Saver {
 public:
-    SaverImpl(MainWindow *mainWindowPtr_, QSharedPointer<QList<MainWindowItem*>> configItems_, QSharedPointer<std::map<std::string,TunnelConfig*>> tunnelConfigs_);
+    SaverImpl(MainWindow *mainWindowPtr_, QList<MainWindowItem*>* configItems_, std::map<std::string,TunnelConfig*>* tunnelConfigs_);
     virtual ~SaverImpl();
     virtual bool save(bool reloadAfterSave, const FocusEnum focusOn, const std::string& tunnelNameToFocus, QWidget* widgetToFocus);
     void setConfPath(QString& confpath_);
     void setTunnelsConfPath(QString& tunconfpath_);
 private:
-    QSharedPointer<QList<MainWindowItem*>> configItems;
-    QSharedPointer<std::map<std::string,TunnelConfig*>> tunnelConfigs;
+    QList<MainWindowItem*>* configItems;
+    std::map<std::string,TunnelConfig*>* tunnelConfigs;
     QString confpath;
     QString tunconfpath;
     MainWindow* mainWindowPtr;
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index adc0099..433630a 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -16,6 +16,7 @@
 #include <QStyleHints>
 #include <QScreen>
 #include <QWindow>
+#include <QMessageBox>
 
 #include <assert.h>
 
@@ -68,10 +69,11 @@ MainWindow::MainWindow(std::shared_ptr<std::iostream> logStream_, QWidget *paren
     ,tunconfpath()
     ,tunnelConfigs()
     ,tunnelsPageUpdateListener(this)
+    ,preventSaveTunnelsBool(false)
     ,saverPtr(
          new SaverImpl(this,
-                       QSharedPointer<QList<MainWindowItem*>>(&configItems),
-                       QSharedPointer<std::map<std::string,TunnelConfig*>>(&tunnelConfigs)))
+                       &configItems,
+                       &tunnelConfigs))
 
 {
     assert(delayedSaveManagerPtr!=nullptr);
@@ -778,6 +780,10 @@ void MainWindow::loadAllConfigs(SaverImpl* saverPtr){
 
 void MainWindow::DisableTunnelsPage() {
     ui->tunnelsScrollAreaWidgetContents->setEnabled(false);
+    ui->tunnelsScrollArea->setEnabled(false);
+    ui->addClientTunnelPushButton->setEnabled(false);
+    ui->addServerTunnelPushButton->setEnabled(false);
+    preventSaveTunnels();
 }
 
 void MainWindow::layoutTunnels() {
@@ -1135,3 +1141,14 @@ void MainWindow::syncLogLevel (int /*comboBoxIndex*/) {
     i2p::log::Logger().Reopen ();
 }
 
+void MainWindow::preventSaveTunnels() {
+    preventSaveTunnelsBool = true;
+}
+
+bool MainWindow::isPreventSaveTunnelsMode() {
+    return preventSaveTunnelsBool;
+}
+
+void MainWindow::showTunnelsPagePreventedMessage() {
+    QMessageBox::critical(this,QObject::tr("Error"),QObject::tr("Not saving tunnels configuration due to previous errors with it."));
+}
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 525ff63..1522e4c 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -500,6 +500,8 @@ public:
     Ui::GeneralSettingsContentsForm* uiSettings;
     void adjustSizesAccordingToWrongLabel();
     bool applyTunnelsUiToConfigs();
+    void preventSaveTunnels();
+    bool isPreventSaveTunnelsMode();
 private:
     int settingsTitleLabelNominalHeight;
     TextBrowserTweaked1 * textBrowser;
@@ -894,9 +896,13 @@ private:
 
     //void onLoggingOptionsChange() {}
 
+    bool preventSaveTunnelsBool;
     SaverImpl* saverPtr;
 
     void DisableTunnelsPage();
+
+public slots:
+    void showTunnelsPagePreventedMessage();
 };
 
 #endif // MAINWINDOW_H