Permalink help

Hey,

This seems like a simple issue, but I can’t find a solution.

I’m just wanting to simplify my permalinks. For some reason I don’t have the option of deleting the “blog-2” part of the link.

I just want the link to be https://www.contentlab.co.nz/thelab/

But the only part I can currently edit is “thelab”.

Would really appreciate any help. I’m sure it’s pretty straightforward but I can’t seem to figure it out.

Thanks!

The page I need help with: [log in to see the link]