Treegrid Aggregate does not works with nuxt

[waiyanmintun]

[EJ2TreeGrid.Warning]: INVALID FORMAT
For more information, refer to the following documentation links:
Number format: https://ej2.syncfusion.com/documentation//common/internationalization#supported-format-string
Date format: https://ej2.syncfusion.com/documentation//common/internationalization#manipulating-datetime
Message: TypeError: Cannot read properties of undefined (reading 'toString')

"nuxt": "^3.15.4",
"@syncfusion/ej2-vue-treegrid": "^29.1.39",

https://codesandbox.io/p/devbox/vqv7gg

If uncomment the aggregates lines, above error show up.