According to the prompt information, the error occurs on line 85 of wp-async-request.php, which is caused by the SEO By Rank Math plugin and the WooCommerce Action Scheduler plugin.
To fix this, you can try the following steps:
Updating Plugins and WordPress: Some plugins or themes may require specific versions of WordPress or other plugins to work properly. You can try updating plugins and WordPress to the latest versions to see if that fixes the problem.
Disable SEO By Rank Math and WooCommerce Action Scheduler plugins: You can try disabling these two plugins and test again to see if the error still occurs. If the error disappears, you can be sure that these two plugins are causing the problem.
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