Title: Invalid argument error message
Last modified: August 21, 2016

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# Invalid argument error message

 *  [NicoleHolgate](https://wordpress.org/support/users/nicoleholgate/)
 * (@nicoleholgate)
 * [12 years, 11 months ago](https://wordpress.org/support/topic/invalid-argument-error-message/)
 * Hi,
 * I have used the pop up layer shortcode
 * <?php echo do_shortcode (‘[mp3-popout tracks=”FEED:/music” dload=”y”]’) ?>
 * When I refresh the page, I get the following message
 * Warning: Invalid argument supplied for foreach() in wp-content/plugins/mp3-jplayer/
   mp3j_main.php on line 228
 * Warning: Invalid argument supplied for foreach() in wp-content/plugins/mp3-jplayer/
   mp3j_main.php on line 237
 * And assitance would be great 🙂
 * Thanks!
 * Nicole
 * [http://wordpress.org/extend/plugins/mp3-jplayer/](http://wordpress.org/extend/plugins/mp3-jplayer/)

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## Tags

 * [mp3j](https://wordpress.org/support/topic-tag/mp3j/)

 * 0 replies
 * 1 participant
 * Last reply from: [NicoleHolgate](https://wordpress.org/support/users/nicoleholgate/)
 * Last activity: [12 years, 11 months ago](https://wordpress.org/support/topic/invalid-argument-error-message/)
 * Status: not resolved