Typing /advancedchat announceconfig doesn't display announceConfig.invalid messages it displays a weird error in chat

### Describe the bug

see image for chat message

### How to reproduce

type /chat announceconfig

### Screenshots / Videos

<img width="513" height="54" alt="Image" src="https://github.com/user-attachments/assets/dddb8174-bb7c-4012-999b-de582aa44b52" />

### Server Log

https://mcpaste.io/fff88a2ac41700e9

### Filled out form correct and using latest version

I confirm