diff --git a/src/main/java/com/application/munera/views/categories/CategoriesView.java b/src/main/java/com/application/munera/views/categories/CategoriesView.java
index 35f7f51..94f0292 100644
--- a/src/main/java/com/application/munera/views/categories/CategoriesView.java
+++ b/src/main/java/com/application/munera/views/categories/CategoriesView.java
@@ -25,9 +25,8 @@ import com.vaadin.flow.router.BeforeEnterEvent;
 import com.vaadin.flow.router.BeforeEnterObserver;
 import com.vaadin.flow.router.PageTitle;
 import com.vaadin.flow.router.Route;
-import com.vaadin.flow.spring.data.VaadinSpringDataHelpers;
 import jakarta.annotation.security.PermitAll;
-import org.springframework.data.domain.PageRequest;
+import org.springframework.dao.DataIntegrityViolationException;
 import org.springframework.orm.ObjectOptimisticLockingFailureException;
 
 import java.util.Optional;
@@ -133,6 +132,11 @@ public class CategoriesView extends Div implements BeforeEnterObserver {
                         "Error updating the data. Somebody else has updated the record while you were making changes.");
                 n.setPosition(Notification.Position.MIDDLE);
                 n.addThemeVariants(NotificationVariant.LUMO_ERROR);
+            } catch (DataIntegrityViolationException ex) {
+                Notification n = Notification.show(
+                        "Cannot delete this category as it is associated with existing expenses.");
+                n.setPosition(Notification.Position.MIDDLE);
+                n.addThemeVariants(NotificationVariant.LUMO_ERROR);
             }
         });
     }