Title: Error 500 PHP 8.0
Last modified: January 19, 2022

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# Error 500 PHP 8.0

 *  Resolved [cellar45](https://wordpress.org/support/users/cellar45/)
 * (@cellar45)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/error-500-php-8-0/)
 * Hello,
 * We are getting a problem error with the AST plug-in using php 8.0 and woocommerce
   6.1.
 * The error message is:
    Got error ‘PHP message: The is_ajax function is deprecated
   since version 6.1.0. Replace with wp_doing_ajax.’, referer: [https://www.xxxx.xxx/wp-admin/admin.php?page=woocommerce-advanced-shipment-tracking](https://www.xxxx.xxx/wp-admin/admin.php?page=woocommerce-advanced-shipment-tracking)
 * Can this could corrected, please.
 * I’ve tested with php 7.4 and works ok.
 * Thanks.
    Ricardo

Viewing 1 replies (of 1 total)

 *  Plugin Author [Zorem](https://wordpress.org/support/users/zorem/)
 * (@zorem)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/error-500-php-8-0/#post-15270938)
 * Hi [@cellar45](https://wordpress.org/support/users/cellar45/),
 * We checked our plugin and we don’t have this function – ‘is_ajax’ in our plugin.
   
   You can try to deactivate all your plugins and keep only AST and WooCommerce 
   and then check again. if it is solved, activate your plugins one by one to find
   the one who cause this error.
 * Thanks,

Viewing 1 replies (of 1 total)

The topic ‘Error 500 PHP 8.0’ is closed to new replies.

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## Tags

 * [AST](https://wordpress.org/support/topic-tag/ast/)
 * [php](https://wordpress.org/support/topic-tag/php/)

 * 1 reply
 * 2 participants
 * Last reply from: [Zorem](https://wordpress.org/support/users/zorem/)
 * Last activity: [4 years, 4 months ago](https://wordpress.org/support/topic/error-500-php-8-0/#post-15270938)
 * Status: resolved