Hello,
You changed location of the search box moving it from 'horizontal-search' container to 'header'
but the path to categories field in selector still refers to 'horizontal-search' container which is empty:
Code:
Only registered members can view the code.
highlithed code.jpg
also you didn't copied code completely from 'horizontal-search' container
(see attached screenshot 'highlighted code' what code should be copied)
categories selector.jpg
So, you should
move search box completely including 'horizontal-search' container
or
copy only the code that highlighted on the screenshot and wrap it with some container like:
Code:
Only registered members can view the code.
in this case change categories selector to:
Code:
Only registered members can view the code.
analogically change the value for search by distance block, see on the screenshot