diff --git a/app/HGProductionTool/form_maininterface.cpp b/app/HGProductionTool/form_maininterface.cpp
index 4e37ef2..b335806 100644
--- a/app/HGProductionTool/form_maininterface.cpp
+++ b/app/HGProductionTool/form_maininterface.cpp
@@ -229,22 +229,26 @@ void Form_mainInterface::on_pbtn_fail_clicked()
 {
     int row = ui->tableWidget->currentRow();
     QTableWidgetItem *item = ui->tableWidget->item(row, 1);
-    QString title = item->text();
 
-    Dialog_ExcepDesc dlg(this);
-    if (dlg.exec())
+    if (item != nullptr)
     {
-        ui->tableWidget->setItem(row, 2, new QTableWidgetItem(getItemStatusStr(HGPDTTOOLDB_ENTRYSTATUS_NOTPASS)));
-        ui->tableWidget->item(row, 2)->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
-        ui->tableWidget->item(row, 2)->setBackgroundColor(QColor(255,0,0));
+        QString title = item->text();
 
-        QString str = dlg.getExcepDesc();
-        std::string name = m_map_title_name.value(title).name.toStdString();
-        HGPdtToolDb_SetDeviceEntryStatus(m_pdtToolDbDevice, name.c_str(), HGPDTTOOLDB_ENTRYSTATUS_NOTPASS);
-        HGPdtToolDb_SetDeviceEntryExcepDesc(m_pdtToolDbDevice, name.c_str(), str.toStdString().c_str());
+        Dialog_ExcepDesc dlg(this);
+        if (dlg.exec())
+        {
+            ui->tableWidget->setItem(row, 2, new QTableWidgetItem(getItemStatusStr(HGPDTTOOLDB_ENTRYSTATUS_NOTPASS)));
+            ui->tableWidget->item(row, 2)->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
+            ui->tableWidget->item(row, 2)->setBackgroundColor(QColor(255,0,0));
 
-        QTableWidgetItem *item2 = ui->tableWidget->item(row, 2);
-        item2->setToolTip(str);
+            QString str = dlg.getExcepDesc();
+            std::string name = m_map_title_name.value(title).name.toStdString();
+            HGPdtToolDb_SetDeviceEntryStatus(m_pdtToolDbDevice, name.c_str(), HGPDTTOOLDB_ENTRYSTATUS_NOTPASS);
+            HGPdtToolDb_SetDeviceEntryExcepDesc(m_pdtToolDbDevice, name.c_str(), str.toStdString().c_str());
+
+            QTableWidgetItem *item2 = ui->tableWidget->item(row, 2);
+            item2->setToolTip(str);
+        }
     }
 }
 
@@ -252,17 +256,21 @@ void Form_mainInterface::on_pbtn_pass_clicked()
 {
     int row = ui->tableWidget->currentRow();
     QTableWidgetItem *item = ui->tableWidget->item(row, 1);
-    QString title = item->text();
-    std::string name = m_map_title_name.value(title).name.toStdString();
-    HGPdtToolDb_SetDeviceEntryStatus(m_pdtToolDbDevice, name.c_str(), HGPDTTOOLDB_ENTRYSTATUS_PASS);
-    HGPdtToolDb_SetDeviceEntryExcepDesc(m_pdtToolDbDevice, name.c_str(), "");
+    if (item != nullptr)
+    {
+        QString title = item->text();
+        std::string name = m_map_title_name.value(title).name.toStdString();
+        HGPdtToolDb_SetDeviceEntryStatus(m_pdtToolDbDevice, name.c_str(), HGPDTTOOLDB_ENTRYSTATUS_PASS);
+        HGPdtToolDb_SetDeviceEntryExcepDesc(m_pdtToolDbDevice, name.c_str(), "");
 
-    ui->tableWidget->setItem(row, 2, new QTableWidgetItem(getItemStatusStr(HGPDTTOOLDB_ENTRYSTATUS_PASS)));
-    ui->tableWidget->item(row, 2)->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
-    ui->tableWidget->item(row, 2)->setBackgroundColor(QColor(0,255,0));
+        ui->tableWidget->setItem(row, 2, new QTableWidgetItem(getItemStatusStr(HGPDTTOOLDB_ENTRYSTATUS_PASS)));
+        ui->tableWidget->item(row, 2)->setTextAlignment(Qt::AlignHCenter | Qt::AlignVCenter);
+        ui->tableWidget->item(row, 2)->setBackgroundColor(QColor(0,255,0));
+
+        QTableWidgetItem *item2 = ui->tableWidget->item(row, 2);
+        item2->setToolTip("");
+    }
 
-    QTableWidgetItem *item2 = ui->tableWidget->item(row, 2);
-    item2->setToolTip("");
 
 //    HGImage img = nullptr;
 //    m_view->getImage(&img);
@@ -481,10 +489,12 @@ void Form_mainInterface::on_tableWidget_currentItemChanged(QTableWidgetItem *cur
         {
 //            ui->pbtn_showImg->setVisible(true);
         }
-    }
-    else
-    {
-        updateUiEnabled(false);
+
+        m_multiIndex = -1;
+        m_list_images.clear();
+        QDir dir(getCachePath());
+        if (dir.exists())
+            dir.removeRecursively();
     }
 }
 
@@ -498,14 +508,17 @@ void Form_mainInterface::on_pbtn_start_clicked()
 
     int row = ui->tableWidget->currentRow();
     QTableWidgetItem *item = ui->tableWidget->item(row, 1);
-    QString title = item->text();
-    QString name = m_map_title_name.value(title).name;
-    if (m_hg != nullptr)
-        func_test_go(name.toStdWString().c_str(), L"null", m_hg);
+    if (item != nullptr)
+    {
+        QString title = item->text();
+        QString name = m_map_title_name.value(title).name;
+        if (m_hg != nullptr)
+            func_test_go(name.toStdWString().c_str(), L"null", m_hg);
 
-    updateUiEnabled(false);
-    m_isTesting = true;
-    m_mainwnd->addTestingRef();
+        updateUiEnabled(false);
+        m_isTesting = true;
+        m_mainwnd->addTestingRef();
+    }
 }
 
 void Form_mainInterface::on_pbtn_showImg_clicked()