The issue with Admin UI cannot be found

[wakedupblessed]

Good morning, guys

I have faced the issue with your package: in my optimizely project i am using the different project structure so my _Layout lives under
Pages/Shared instead of default Views/Shared. I consider this can be an issue that I am recieving this kind of error while trying to open admin view in CMS

the Error message:

The error message you provided indicates that there is a mismatch between the model expected by your view and the model being passed to it. Specifically, your view is expecting a model of type Web.Features.Layout.Interfaces.ILayout<T> but it is receiving a model of type Geta.NotFoundHandler.Admin.Pages.Geta.NotFoundHandler.Admin.IndexModel

the result in cms (I`m redirected to our 505page)