The tag links in my WordPress website stopped working right around the time of the last time I'm upgraded WordPress to 3.5.1 a few weeks ago.
Now, when anyone clicks a link from one of the tags, such as Music, they get sent to an error page that says:
Posts Tagged ‘ Music ’
No results were found for your request.
Can someone tell me which php files control tag links? Also, can anyone suggest whether this an issue at the WordPress level or the theme level?