Path_to single entry

Hey!

So I'm doing first steps, the basic stuff. And I'm stuck on this step – https://locomotive-v3.readme.io/docs/use-them-in-templates. Path_to link to a single entry generates empty space and thus the link just reloads the page we're on. I checked docs and my code like 10 times, I don't get what I'm doing wrong and where's the problem.

Any help and advice would be much appreciated.