Plugin in footer

Hi,

I’m trying to set up the plugin in the footer of the site.

I have wrote in footer.php of my theme the following:
<?php mp3j_addscripts(); ?>
and then <?php mp3j_put( ‘[mp3-jplayer tracks=”FEED:LIB”]’ ); ?>

The plugin is workint but I get the next message error on the live site just below the plugin:
Warning: Wrong parameter count for strstr() in /homepages/19/d245659619/htdocs/clientes/ivan/sangro/wp-content/plugins/mp3-jplayer/mp3j_main.php on line 1635

Do you have any idea?

https://ww.wp.xz.cn/plugins/mp3-jplayer/