Property Ext is not defined in class

When open edit card, functional(visual and js) doesn't working and in console next error's:



 file: https://dogarray.com/core/hash/ng-core/src/polyfills-es5.js?hash=41f4be…

 line: 1

 column: 16702

 message: Uncaught Terrasoft.ItemNotFoundException: Property Ext is not defined in class Terrasoft.model.BaseViewModel 



*Helping out re-create edit page, but I don't like this way