Cannot complete this action, please try again in CAML query using CSOM

I have the above code when I try to execute the following piece of code. The query works for me in CAML Designer, what am I missing here?

public static SPRemoteEventServiceStatus CreateProjectSiteAndUpdateSiteOnList(SPRemoteEventProperties properties)
        {
            SPRemoteEventResult result = new SPRemoteEventResult();
            try
            {
                using (ClientContext clientContext = TokenHelper.CreateRemoteEventReceiverClientContext(properties))
                {
                    if (clientContext != null)
                    {
                        //Get the item that we are trying to add to the project list
                        List projectList = clientContext.Web.Lists.GetById(properties.ItemEventProperties.ListId);
                        ListItem item = projectList.GetItemById(properties.ItemEventProperties.ListItemId);
                        clientContext.Load(item);
                        clientContext.ExecuteQuery();

                        //Get client name from that list item
                        TaxonomyFieldValue taxFieldValueClient = item["Nombre_x0020_Cliente"] as TaxonomyFieldValue;
                        string nombreCliente=  taxFieldValueClient.Label;

                        //Get the client we need from the clientList, matching the name on the project list
                        Microsoft.SharePoint.Client.List clientList = clientContext.Web.Lists.GetByTitle("Clientes");
                        clientContext.Load(clientList);
                        clientContext.ExecuteQuery();
                        string strUrlCliente=default(string);
                        if (clientList != null && clientList.ItemCount > 0)
                        {
                            CamlQuery camlQuery = new CamlQuery();
                            //we know client name is unique so query should return one or zero rows on the client list
                            camlQuery.ViewXml = "<View><Query><Where><Eq>" +
                                                "<FieldRef Name='Nombre_x0020_Cliente' />" +
                                                "<Value Type='TaxonomyFieldType'>" + nombreCliente + "</Value>" +
                                                "</Eq><ViewFields><FieldRef Name='Sitio_x0020_Cliente' /></ViewFields></View>";

                            ListItemCollection listItems = clientList.GetItems(camlQuery);
                            clientContext.Load(listItems);
                            clientContext.ExecuteQuery();