type 'Null' is not a subtytpe of type 'String' in type cast

Great app! However both events and sessions tab don't work and come up with the error as per the screenshot. It's a brand new site but it does have a few events.
<img width="540" height="1050" alt="Image" src="https://github.com/user-attachments/assets/1fc20e55-831f-469a-9cc4-3b013deda4ae" />