diff --git a/app/src/main/java/protect/card_locker/ImportExportActivity.java b/app/src/main/java/protect/card_locker/ImportExportActivity.java
index 22969b746..afc8b45b2 100644
--- a/app/src/main/java/protect/card_locker/ImportExportActivity.java
+++ b/app/src/main/java/protect/card_locker/ImportExportActivity.java
@@ -20,6 +20,7 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
+import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.ArrayList;
@@ -405,6 +406,8 @@ public class ImportExportActivity extends CatimaAppCompatActivity
 
                 Log.e(TAG, "Starting file export with: " + uri.toString());
                 startExport(writer, uri);
+
+                writer.close();
             }
             else
             {
@@ -421,9 +424,11 @@ public class ImportExportActivity extends CatimaAppCompatActivity
                 Log.e(TAG, "Starting file import with: " + uri.toString());
 
                 startImport(reader, uri, importDataFormat, password);
+
+                reader.close();
             }
         }
-        catch(FileNotFoundException e)
+        catch(IOException e)
         {
             Log.e(TAG, "Failed to import/export file: " + uri.toString(), e);
             if (requestCode == CHOOSE_EXPORT_LOCATION)
diff --git a/app/src/main/java/protect/card_locker/importexport/StocardImporter.java b/app/src/main/java/protect/card_locker/importexport/StocardImporter.java
index b3be826d2..63b4bd844 100644
--- a/app/src/main/java/protect/card_locker/importexport/StocardImporter.java
+++ b/app/src/main/java/protect/card_locker/importexport/StocardImporter.java
@@ -116,14 +116,14 @@ public class StocardImporter implements Importer
                                     .substring("/loyalty-card-providers/".length())
                         );
 
-                        try {
+                        if (jsonObject.has("input_barcode_format")) {
                             loyaltyCardHashMap = appendToLoyaltyCardHashMap(
                                     loyaltyCardHashMap,
                                     cardName,
                                     "barcodeType",
                                     jsonObject.getString("input_barcode_format")
                             );
-                        } catch (JSONException ignored) {}
+                        }
                     }
                 } else if (fileName.endsWith("notes/default.json")) {
                     loyaltyCardHashMap = appendToLoyaltyCardHashMap(