diff --git a/TestApp/Sources/App/AppModule.swift b/TestApp/Sources/App/AppModule.swift
index 22c29235f..4b6fc0f03 100644
--- a/TestApp/Sources/App/AppModule.swift
+++ b/TestApp/Sources/App/AppModule.swift
@@ -78,11 +78,18 @@ extension AppModule: ModuleDelegate {
         guard let error = error else { return }
         if case LibraryError.cancelled = error { return }
 
-        print("Error: \(error)")
+        var message = ""
+        if let error = (error as? LocalizedError)?.errorDescription {
+            message += error + "\n\n"
+        }
+
+        var desc = ""
+        dump(error, to: &desc)
+        message += desc
 
         presentAlert(
             NSLocalizedString("error_title", comment: "Alert title for errors"),
-            message: error.localizedDescription,
+            message: message,
             from: viewController
         )
     }
diff --git a/TestApp/Sources/Library/LibraryError.swift b/TestApp/Sources/Library/LibraryError.swift
index 092bc5dac..cbbab29da 100644
--- a/TestApp/Sources/Library/LibraryError.swift
+++ b/TestApp/Sources/Library/LibraryError.swift
@@ -29,7 +29,11 @@ enum LibraryError: LocalizedError {
             return String(format: NSLocalizedString("library_error_openFailed", comment: "Error message used when a low-level error occured while opening a publication"), error.localizedDescription)
         case let .downloadFailed(error):
             return String(format: NSLocalizedString("library_error_downloadFailed", comment: "Error message when the download of a publication failed"), error?.localizedDescription ?? "None")
-        default:
+        case .bookDeletionFailed:
+            return NSLocalizedString("library_error_bookDeletionFailed", comment: "Error message when the deletion of a publication failed")
+        case .publicationIsRestricted:
+            return NSLocalizedString("library_error_publicationIsRestricted", comment: "Error message when the publication is still restricted")
+        case .cancelled:
             return nil
         }
     }
diff --git a/TestApp/Sources/Resources/en.lproj/Localizable.strings b/TestApp/Sources/Resources/en.lproj/Localizable.strings
index 36a72dbd8..d7937c0be 100644
--- a/TestApp/Sources/Resources/en.lproj/Localizable.strings
+++ b/TestApp/Sources/Resources/en.lproj/Localizable.strings
@@ -69,6 +69,10 @@
 "library_error_openFailed" = "Error while opening this publication: %@";
 /* Error message when the download of a publication failed */
 "library_error_downloadFailed" = "Download failed: %@";
+/* Error message when the deletion of a publication failed */
+"library_error_bookDeletionFailed" = "Failed to delete the publication";
+/* Error message when the publication is still restricted. */
+"library_error_publicationIsRestricted" = "You are not allowed to open this publication";
 
 /* Accessibility label for the library collection view */
 "library_a11y_label" = "Library";