Title: PHP Error message after last update
Last modified: July 14, 2023

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# PHP Error message after last update

 *  [polarracing](https://wordpress.org/support/users/polarracing/)
 * (@polarracing)
 * [2 years, 10 months ago](https://wordpress.org/support/topic/php-error-message-after-last-update/)
 * I get following error message in my debug.log since the last update
 *     ```wp-block-code
       Undefined array key "hierarchical" in C:\xampp\htdocs\dev.my-race-instructor.local\wp-content\plugins\acf-frontend-form-element\main\frontend\fields\general\class-related-terms.php on line 550
       ```
   
 * Using ACF Pro and TwentyTwentyThree as template.

The topic ‘PHP Error message after last update’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [polarracing](https://wordpress.org/support/users/polarracing/)
 * Last activity: [2 years, 10 months ago](https://wordpress.org/support/topic/php-error-message-after-last-update/)
 * Status: not resolved