Title: PHP Warning Notice
Last modified: September 21, 2021

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# PHP Warning Notice

 *  Resolved [vandung93](https://wordpress.org/support/users/vandung93/)
 * (@vandung93)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/php-warning-notice-3/)
 * Hello author,
 * Your plugin rasing PHP warning on the first time page load.
 * PHP Fatal error: Uncaught Error: Call to a member function is_in_stock() on null
   in …../wp-content/plugins/sales-countdown-timer/frontend/archive_page.php:502
 * Please add code to check $product instanceof WC_Product
 * Thanks

Viewing 1 replies (of 1 total)

 *  [kimvt1991](https://wordpress.org/support/users/kimvt1991/)
 * (@kimvt1991)
 * [4 years, 6 months ago](https://wordpress.org/support/topic/php-warning-notice-3/#post-14896824)
 * Hello,
    Thank you for the information. Fix will be added in the next release.
   Best regards

Viewing 1 replies (of 1 total)

The topic ‘PHP Warning Notice’ is closed to new replies.

 * ![](https://ps.w.org/sales-countdown-timer/assets/icon-256x256.gif?rev=3080892)
 * [Sales Countdown Timer](https://wordpress.org/plugins/sales-countdown-timer/)
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 * 1 reply
 * 2 participants
 * Last reply from: [kimvt1991](https://wordpress.org/support/users/kimvt1991/)
 * Last activity: [4 years, 6 months ago](https://wordpress.org/support/topic/php-warning-notice-3/#post-14896824)
 * Status: resolved