Title: Error on PHP8, needs update!
Last modified: July 24, 2023

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# Error on PHP8, needs update!

 *  [grafiman](https://wordpress.org/support/users/grafiman/)
 * (@grafiman)
 * [2 years, 10 months ago](https://wordpress.org/support/topic/error-on-php8-needs-update/)
 * **Fatal error**: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback)
   must be a valid callback, class WC_Piraeusbank_Gateway does not have a method“
   add_woocommerce_customer_meta_fields” in httpdocs/wp-includes/class-wp-hook.php:
   308

Viewing 1 replies (of 1 total)

 *  [Efs](https://wordpress.org/support/users/stevendigital/)
 * (@stevendigital)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/error-on-php8-needs-update/#post-17151657)
 * Hello,
 * Do not know if you found any solutions for this problem, but I also came across
   this. The error indicates that the method does not exist inside the plugin’s 
   file and where it is called.
 * The call on this method/function is on line 150 inside the wooshop-piraeus.php
   file located under /wp-content/plugins/woo-payment-gateway-for-piraeus-bank
 * One workaround is to comment this line out. Go to the start of the line and add//
   in front. Something like this: `//add_filter( 'woocommerce_customer_meta_fields',[
   $this, 'add_woocommerce_customer_meta_fields']);`
 * And let’s hope this will be fixed on the future.
    -  This reply was modified 2 years, 7 months ago by [Efs](https://wordpress.org/support/users/stevendigital/).
      Reason: Minor typo changes

Viewing 1 replies (of 1 total)

The topic ‘Error on PHP8, needs update!’ is closed to new replies.

 * ![](https://ps.w.org/woo-payment-gateway-for-piraeus-bank/assets/icon-128x128.
   jpg?rev=1622917)
 * [Piraeus Bank WooCommerce Payment Gateway](https://wordpress.org/plugins/woo-payment-gateway-for-piraeus-bank/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/woo-payment-gateway-for-piraeus-bank/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/woo-payment-gateway-for-piraeus-bank/)
 * [Active Topics](https://wordpress.org/support/plugin/woo-payment-gateway-for-piraeus-bank/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/woo-payment-gateway-for-piraeus-bank/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/woo-payment-gateway-for-piraeus-bank/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Efs](https://wordpress.org/support/users/stevendigital/)
 * Last activity: [2 years, 7 months ago](https://wordpress.org/support/topic/error-on-php8-needs-update/#post-17151657)
 * Status: not resolved