Running latest v7.1 just downloaded.
When in a category, you have links:
Recent Photos 1 day 7 days 14 days all
The 'all' link is not working. The URL is search.php?cats=###
The error is:
Content visible to verified customers only.
I checked your demo system and it does not exhibit this issue. I have not modified search.php nor searchbox.tmpl.
You can look here: somd.me/dGXFWE