diff --git a/src/ATBAPP/ATBDeviceControllerPlugin.cpp b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
index d7d9b3d..a27bfc1 100644
--- a/src/ATBAPP/ATBDeviceControllerPlugin.cpp
+++ b/src/ATBAPP/ATBDeviceControllerPlugin.cpp
@@ -1094,7 +1094,7 @@ QStringList ATBDeviceControllerPlugin::getPluginInfoList() {
 
 QString const &ATBDeviceControllerPlugin::getString(nsDeviceControllerInterface::RESULT_STATE resultState)
 {
-    QString str;
+    static QString str;
 
     switch (resultState) {
     case nsDeviceControllerInterface::RESULT_STATE::SUCCESS:
@@ -1115,6 +1115,15 @@ QString const &ATBDeviceControllerPlugin::getString(nsDeviceControllerInterface:
     case nsDeviceControllerInterface::RESULT_STATE::INFO:
         str = QString("RESULT_STATE::INFO");
         break;
+    case nsDeviceControllerInterface::RESULT_STATE::ERROR_NETWORK:
+        str = QString("RESULT_STATE::ERROR_NETWORK");
+        break;
+    case nsDeviceControllerInterface::RESULT_STATE::ERROR_BUSY:
+        str = QString("RESULT_STATE::ERROR_BUSY");
+        break;
+    case nsDeviceControllerInterface::RESULT_STATE::ERROR_STATE:
+        str = QString("RESULT_STATE::ERROR_STATE");
+        break;
     }
     return str;