don't try to save unreachable routers

libi2pd/RouterInfo.cpp

@@ -595,13 +595,15 @@ namespace data
 
 	bool RouterInfo::SaveToFile (const std::string& fullPath)
 	{
+		if (m_IsUnreachable) return false; // don't save bad router
 		if (!m_Buffer)
 		{
-			LogPrint (eLogError, "RouterInfo: Can't save, m_Buffer == NULL");
+			LogPrint (eLogWarning, "RouterInfo: Can't save, m_Buffer == NULL");
 			return false;
 		}
 		std::ofstream f (fullPath, std::ofstream::binary | std::ofstream::out);
-		if (!f.is_open ()) {
+		if (!f.is_open ()) 
+		{
 			LogPrint (eLogError, "RouterInfo: Can't save to ", fullPath);
 			return false;
 		}