diff --git a/src/org/openbravo/module/invoicesregisterbook/obirb_actionButton/CreateBookLines.java b/src/org/openbravo/module/invoicesregisterbook/obirb_actionButton/CreateBookLines.java
--- a/src/org/openbravo/module/invoicesregisterbook/obirb_actionButton/CreateBookLines.java
+++ b/src/org/openbravo/module/invoicesregisterbook/obirb_actionButton/CreateBookLines.java
@@ -102,12 +102,12 @@
           msg.setMessage("");
         }
         msg.setType("Warning");
-        msg.setTitle(Utility.messageBD(new DalConnectionProvider(), "@Warning@", OBContext
+        msg.setTitle(Utility.messageBD(new DalConnectionProvider(false), "@Warning@", OBContext
             .getOBContext().getLanguage().getLanguage()));
 
         for (int i = 0; i < oldTaxes.size(); i++)
           msg.setMessage(msg.getMessage()
-              + Utility.messageBD(new DalConnectionProvider(),
+              + Utility.messageBD(new DalConnectionProvider(false),
                   "@OBIRB_OldTax2011@" + oldTaxes.get(i) + "</br>", OBContext.getOBContext()
                       .getLanguage().getLanguage()));
       }
@@ -265,15 +265,15 @@
   // final OBError msg = new OBError();
   // msg.setType("Error");
   // msg.setTitle("Error");
-  // msg.setMessage(Utility.messageBD(new DalConnectionProvider(), "OBIRB_PeriodOpened",
+  // msg.setMessage(Utility.messageBD(new DalConnectionProvider(false), "OBIRB_PeriodOpened",
   // bundle.getContext().getLanguage())
   // + "<br/>"
-  // + Utility.messageBD(new DalConnectionProvider(), "Period", bundle.getContext()
+  // + Utility.messageBD(new DalConnectionProvider(false), "Period", bundle.getContext()
   // .getLanguage())
   // + ": "
   // + period.getName()
   // + " - "
-  // + Utility.messageBD(new DalConnectionProvider(), "Document Type", bundle.getContext()
+  // + Utility.messageBD(new DalConnectionProvider(false), "Document Type", bundle.getContext()
   // .getLanguage()) + ": " + docType.getName());
   // bundle.setResult(msg);
   // return false;
@@ -319,7 +319,7 @@
           ConversionRate cR = dao
               .getConversionRate(invoice.getInvoiceDate(), invoiceCurrency, EURO);
           if (cR == null) {
-            throw new ServletException(Utility.messageBD(new DalConnectionProvider(),
+            throw new ServletException(Utility.messageBD(new DalConnectionProvider(false),
                 "OBIRB_NoConversionFromEuro", lang) + invoiceCurrency.getIdentifier());
           } else {
             multiplyBy = cR.getMultipleRateBy();
@@ -377,21 +377,21 @@
             }
             if (bpLocationList.isEmpty()) {
               msg.setType("Warning");
-              msg.setTitle(Utility.messageBD(new DalConnectionProvider(), "@Warning@", lang));
+              msg.setTitle(Utility.messageBD(new DalConnectionProvider(false), "@Warning@", lang));
               msg.setMessage(msg.getMessage()
-                  + Utility.messageBD(new DalConnectionProvider(), "OBIRB_NoBPLocation" + "</br>",
-                      lang));
+                  + Utility.messageBD(new DalConnectionProvider(false), "OBIRB_NoBPLocation"
+                      + "</br>", lang));
             } else {
               msg.setType("Success");
-              msg.setTitle(Utility.messageBD(new DalConnectionProvider(), "Done", lang));
-              msg.setMessage(Utility.messageBD(new DalConnectionProvider(), "Success", lang));
+              msg.setTitle(Utility.messageBD(new DalConnectionProvider(false), "Done", lang));
+              msg.setMessage(Utility.messageBD(new DalConnectionProvider(false), "Success", lang));
             }
             irbl.setCountryCode(countryCode);
 
             if (invoice.getBusinessPartner().getTaxID() == null)
               if (invoice.getBusinessPartner().getOBTIKTaxIDKey().equalsIgnoreCase("1")
                   || invoice.getBusinessPartner().getOBTIKTaxIDKey().equalsIgnoreCase("2")) {
-                throw new ServletException(Utility.messageBD(new DalConnectionProvider(),
+                throw new ServletException(Utility.messageBD(new DalConnectionProvider(false),
                     "OBIRB_NoBPTaxID", lang) + invoice.getBusinessPartner().getIdentifier());
               } else
                 setCorrectTaxId(irbl, taxIdKey, null, euCountryCodeList);
@@ -683,8 +683,9 @@
         log4j.debug("CreateBookLines: removing book line " + deletableLine.getId());
       dao.removeObject(deletableLine);
       // Necessary to flush here
-      dao.flush();
+      
     }
+    dao.flush();
   }
 
   /**
@@ -860,13 +861,13 @@
     if (bpLocationList.isEmpty()) {
       msg.setType("Warning");
       msg.setTitle(msg.getMessage()
-          + Utility.messageBD(new DalConnectionProvider(), "@Warning@", lang));
-      msg.setMessage(Utility.messageBD(new DalConnectionProvider(), "OBIRB_NoBPLocation" + "</br>",
-          lang));
+          + Utility.messageBD(new DalConnectionProvider(false), "@Warning@", lang));
+      msg.setMessage(Utility.messageBD(new DalConnectionProvider(false), "OBIRB_NoBPLocation"
+          + "</br>", lang));
     } else {
       msg.setType("Success");
-      msg.setTitle(Utility.messageBD(new DalConnectionProvider(), "Done", lang));
-      msg.setMessage(Utility.messageBD(new DalConnectionProvider(), "Success", lang));
+      msg.setTitle(Utility.messageBD(new DalConnectionProvider(false), "Done", lang));
+      msg.setMessage(Utility.messageBD(new DalConnectionProvider(false), "Success", lang));
     }
     irbl.setCountryCode(countryCode);
 
@@ -875,8 +876,8 @@
         && line.getTax().getRate().compareTo(BigDecimal.ZERO) != 0) {
       if (invoice.getOrganization().getOrganizationInformationList().size() == 0
           || invoice.getOrganization().getOrganizationInformationList().get(0).getBusinessPartner() == null)
-        throw new ServletException(Utility.messageBD(new DalConnectionProvider(), "OBIRB_NoOrgBP",
-            lang) + " \"" + invoice.getOrganization().getIdentifier() + "\"");
+        throw new ServletException(Utility.messageBD(new DalConnectionProvider(false),
+            "OBIRB_NoOrgBP", lang) + " \"" + invoice.getOrganization().getIdentifier() + "\"");
       else {
         irbl.setBusinessPartner(invoice.getOrganization().getOrganizationInformationList().get(0)
             .getBusinessPartner());
@@ -897,7 +898,7 @@
       if (invoice.getBusinessPartner().getTaxID() == null)
         if (invoice.getBusinessPartner().getOBTIKTaxIDKey().equalsIgnoreCase("1")
             || invoice.getBusinessPartner().getOBTIKTaxIDKey().equalsIgnoreCase("2")) {
-          throw new ServletException(Utility.messageBD(new DalConnectionProvider(),
+          throw new ServletException(Utility.messageBD(new DalConnectionProvider(false),
               "OBIRB_NoBPTaxID", lang) + invoice.getBusinessPartner().getIdentifier());
         } else
           setCorrectTaxId(irbl, taxIdKey, null, countryCodeList);
diff --git a/src/org/openbravo/module/invoicesregisterbook/obirb_actionButton/CreateBookLinesDao.java b/src/org/openbravo/module/invoicesregisterbook/obirb_actionButton/CreateBookLinesDao.java
--- a/src/org/openbravo/module/invoicesregisterbook/obirb_actionButton/CreateBookLinesDao.java
+++ b/src/org/openbravo/module/invoicesregisterbook/obirb_actionButton/CreateBookLinesDao.java
@@ -345,7 +345,7 @@
     try {
       OBContext.setAdminMode(true);
       // first get a connection
-      final Connection connection = OBDal.getInstance().getConnection();
+      final Connection connection = OBDal.getInstance().getConnection(false);
 
       final PreparedStatement ps = connection
           .prepareStatement("SELECT OBIRB_GETOPERATIONDATE(?) FROM DUAL");