Support » Plugin: Yet Another Related Posts Plugin (YARPP) » Undefined function related_posts() in single.php

  • Hi, I have some problems using YARPP plugin in my wordpress site, I have the thematic theme and the wordpress is multi user.
    I need to add the related_posts function in my homepage and in each single post page. I added and activated the plugin in my WP and I added the related_posts function in the header.php.
    For some reason in the homepage the plugin works fine but in others pages e.g post page (single.php) the site returns me undefined function related_posts().
    I dont know what is the problem 🙁

    Thanks!! your comments will be appreciated!

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