Title: Undefined array key warning
Last modified: August 20, 2023

---

# Undefined array key warning

 *  Resolved [dholtzman](https://wordpress.org/support/users/dholtzman/)
 * (@dholtzman)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/undefined-array-key-warning-3/)
 * Is there a way to eliminate this frequently-repeated message:
 * PHP Warning: Undefined array key “HTTP_ACCEPT_LANGUAGE” in /home/concerti/public_html/
   wordpress/wp-content/plugins/countdown-builder/classes/countdown/SimpleCountdown.
   php on line 207
 * Thank you.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fundefined-array-key-warning-3%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [adamskaat](https://wordpress.org/support/users/adamskaat/)
 * (@adamskaat)
 * [2 years, 9 months ago](https://wordpress.org/support/topic/undefined-array-key-warning-3/#post-16990088)
 * Dear [@dholtzman](https://wordpress.org/support/users/dholtzman/),
   On your WordPress
   enabled development mode, so if you disable it you will not see any warning.We
   will fix that warning on our upcoming update.Ps. Do you have some new feature
   suggestions also?

Viewing 1 replies (of 1 total)

The topic ‘Undefined array key warning’ is closed to new replies.

 * ![](https://ps.w.org/countdown-builder/assets/icon-128x128.png?rev=1821564)
 * [Countdown, Coming Soon, Maintenance - Countdown & Clock](https://wordpress.org/plugins/countdown-builder/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/countdown-builder/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/countdown-builder/)
 * [Active Topics](https://wordpress.org/support/plugin/countdown-builder/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/countdown-builder/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/countdown-builder/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [adamskaat](https://wordpress.org/support/users/adamskaat/)
 * Last activity: [2 years, 9 months ago](https://wordpress.org/support/topic/undefined-array-key-warning-3/#post-16990088)
 * Status: resolved