bugfix: add behaviour on empty build and shared data

ServerLMS/serverlmswidget.h

@@ -48,6 +48,7 @@ public:
     ~ServerLMSWidget();
 
     void autorizationHandler(QString login);
+    void setError(int code);
 
 
 protected:
@@ -81,6 +82,10 @@ public:
     {
         stateBlockAutorization = unblocked;
     }
+    int hasError() const
+    {
+        return errorCode;
+    }
     EStateBlockAutorization getStateBlockAutorization() const
     {
         return stateBlockAutorization;
@@ -128,6 +133,7 @@ private:
     bool first = true; // для тестов Unity
 
     QTranslator qtLanguageTranslator;
+    int errorCode;
 
 };