Spreadsheet data validation sample is not working and is throwing an error

Reproducible also on prod: https://staging.infragistics.com/products/ignite-ui-angular/angular/components/spreadsheet-data-validation

<img width="906" height="370" alt="Image" src="https://github.com/user-attachments/assets/9eaa9a11-c5dd-4299-a572-d6791c25adcd" />

<img width="755" height="182" alt="Image" src="https://github.com/user-attachments/assets/c3878a2e-76a9-4b98-8b69-5469321c9886" />