I am trying to create a new blog template. Based

Hello,

I am trying to create a new blog template. Based on the instruction, I created a new site then went to New Blog Template to create a template. But everytime I add the Blog ID, it is telling me that I cannot use the admin page, but I am not really. I am not sure what I did wrong. I created and deleted new blog I created for the blog template but it is not working.

Thanks for your help.