PHP Fatal error

Not replicating, observing members are added successfully with no error when using ConvertKit 2.5.2:
https://www.loom.com/share/43a256c4a0c54859b576ceddb4ee11ca?sid=750b1c5f-a0e3-4a55-8e5c-d45a43a9a12d

Please provide:

1. Screenshot of settings at Settings > ConvertKit > Wishlist Member
2. Full wp-content/debug.log file (or at the very least, the full stack trace of the fatal error)
3. (Optional, but helpful) A brief screencast video showing the steps taken to replicate the error (or, if steps taken differ from the above video, steps we need to take to replicate).

Thanks.

Hello,

Screenshot: https://chandoo.org/assets/convertkit-wishlist-settings.png

The full stack trace of the error in wp-content/debug.log file…

[02-Aug-2024 05:23:16 UTC] PHP Fatal error: Uncaught TypeError: ConvertKit_API_V4::add_subscriber_to_form(): Argument #1 ($form_id) must be of type int, string given, called in /private/wp-content/plugins/convertkit/vendor/convertkit/convertkit-wordpress-libraries/src/class-convertkit-api-v4.php on line 517 and defined in /private/wp-content/plugins/convertkit/vendor/convertkit/convertkit-wordpress-libraries/src/class-convertkit-api-traits.php:253

Stack trace:

0 /private/wp-content/plugins/convertkit/vendor/convertkit/convertkit-wordpress-libraries/src/class-convertkit-api-v4.php(517): ConvertKit_API_V4->add_subscriber_to_form(‘default’, 2836704309)

1 /private/wp-content/plugins/convertkit/includes/integrations/wishlist/class-convertkit-wishlist.php(161): ConvertKit_API_V4->form_subscribe(‘default’, ‘pothi+20240802_…’, ”)

2 /private/wp-content/plugins/convertkit/includes/integrations/wishlist/class-convertkit-wishlist.php(64): ConvertKit_Wishlist->member_resource_subscribe(Array, ‘default’)

3 /private/wp-includes/class-wp-hook.php(326): ConvertKit_Wishlist->add_user_levels(12778, Array)

4 /private/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)

5 /private/wp-includes/plugin.php(517): WP_Hook->do_action(Array)

6 /private/wp-content/plugins/wishlist-member/classes/class-member-methods.php(1268): do_action(‘wishlistmember_…’, 12778, Array, Array, Array)

7 /private/wp-content/plugins/wishlist-member/classes/class-registration-methods.php(605): WishListMember->set_membership_levels(12778, Array, Array)

8 /private/wp-content/plugins/wishlist-member/classes/wishlist-member3-actions.php(1749): WishListMember->wpm_register(Array, ”, false, false)

9 /private/wp-content/plugins/wishlist-member/classes/wishlist-member3-actions.php(134): WishListMember3_Actions->add_user(Array)

10 /private/wp-content/plugins/wishlist-member/classes/wishlist-member3-hooks.php(342): WishListMember3_Actions->process_admin_ajax_actions(‘add_user’, Array)

11 /private/wp-includes/class-wp-hook.php(324): WishListMember3_Hooks->admin_actions(”)

12 /private/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(”, Array)

13 /private/wp-includes/plugin.php(517): WP_Hook->do_action(Array)

14 /private/wp-admin/admin-ajax.php(192): do_action(‘wp_ajax_admin_a…’)

15 {main}

thrown in /private/wp-content/plugins/convertkit/vendor/convertkit/convertkit-wordpress-libraries/src/class-convertkit-api-traits.php on line 253

Due to privacy reasons, I can’t provide a screen recording. Used the same method as in the screen recording shared by you. However, the issue might arise when used with other plugins that we use in our specific environment / site. Here’s the list of plugins used in our side…

wp plugin status

  A akismet                       
  A block-bad-queries             
 UA convertkit                    2.4.9.1
  A coursecure                    
  A elementor                     
  A elementor-pro                 
  A really-simple-captcha         
  A simple-history                
  A ultimate-addons-for-gutenberg 
  A ssl-insecure-content-fixer    
  A subscribe-to-comments         
  A wishlist-audio-player         
  A wishlist-member               
  A wishlist-variables            
  A wishlist-welcome              
  D object-cache.php

PHP is at 8.1.x. WP core is at 6.6.1.

Thanks for looking into this.

1. Click Save Changes on screen at https://chandoo.org/assets/convertkit-wishlist-settings.png
2. Repeat steps to add a member to confirm if the error still persists.

That worked. Thank you.