Scope not available

Hi,

I have recently started Servicenow Developers Program however I'm a Servicenow user from the past 1 year.

I created a application "Marketing Events Application" and later deleted it.

Now I want to create an application with the same name "Marketing Events Application" then it is showing the error.

'Marketing Events Application' could not be created. The scope 'x_12386_marketing' could not be registered in the AppRepo for this reason: Scope is not available.

So, I would like to know how to use the same scope though I can change it manually can create an application. I want to know from where can I delete this stored scope data.

Thanks in advance.