diff --git a/app/src/cc/arduino/contributions/packages/ui/ContributionManagerUI.java b/app/src/cc/arduino/contributions/packages/ui/ContributionManagerUI.java
index 5bd4a98ac..ff2807903 100644
--- a/app/src/cc/arduino/contributions/packages/ui/ContributionManagerUI.java
+++ b/app/src/cc/arduino/contributions/packages/ui/ContributionManagerUI.java
@@ -76,7 +76,7 @@ public class ContributionManagerUI extends InstallerJDialog {
   }
 
   public ContributionManagerUI(Frame parent) {
-    super(parent, "Boards Manager", Dialog.ModalityType.APPLICATION_MODAL);
+    super(parent, _("Boards Manager"), Dialog.ModalityType.APPLICATION_MODAL);
   }
 
   public void setIndexer(ContributionsIndexer indexer) {
diff --git a/app/src/cc/arduino/contributions/ui/InstallerJDialog.java b/app/src/cc/arduino/contributions/ui/InstallerJDialog.java
index 77d5e3892..de18fe1c4 100644
--- a/app/src/cc/arduino/contributions/ui/InstallerJDialog.java
+++ b/app/src/cc/arduino/contributions/ui/InstallerJDialog.java
@@ -34,9 +34,6 @@ import processing.app.Theme;
 
 import javax.swing.*;
 import javax.swing.border.EmptyBorder;
-import javax.swing.event.TableModelEvent;
-import javax.swing.event.TableModelListener;
-import javax.swing.table.TableCellRenderer;
 import javax.swing.table.TableColumn;
 import javax.swing.table.TableColumnModel;
 import java.awt.*;
@@ -160,7 +157,6 @@ public abstract class InstallerJDialog<T> extends JDialog {
 
     errorMessage = new JLabel("");
     errorMessage.setForeground(Color.RED);
-    errorMessage.setVisible(false);
 
     {
       JButton cancelButton = new JButton(_("Cancel"));