Hello JoomShaper Support, 

I am having trouble with the Wishlist functionality in EasyStore on my development site. I have documented the issues with screenshots (attached) and have performed the following troubleshooting steps without success. 

The Problems: 

• Frontend Error: When viewing the dedicated Wishlist page (using the SPPB Product List addon with "Wishlist" as the source), I receive the following error:
0 - array_column(): Argument #1 ($array) must be of type array, false given
(Note: This occurs on both PHP 8.2 and 8.3, and with both MySQLi and MySQL PDO drivers).
• Backend Missing Data: Even though I have added products to the wishlist while logged in, no wishlist records appear under the Customer profile in the EasyStore backend.
• Initial 404: The "Wishlist" link in the user account dropdown originally threw a 404, which I resolved by creating a menu item (type SPPB) with the alias wishlist, but now it only displays the error mentioned above.  
The menu item links to a new Page in SPPB which I have named ‘easystore_wishlist’

Environment & Steps Taken: 

• Versions: Latest version of EasyStore Pro and SP Page Builder Pro (Manually re-installed to ensure no corrupted files).
• Template: Allura - Helix Ultimate (Checked for com_easystore overrides; none found).
• Database: Ran the Joomla "Database Fix" tool and tried flushing tables.
• Addons: I have tried deleting and re-adding the "Product List" addon on the wishlist page.
• Product Types: The products being added do not have variants.
• Product Configuration: I have verified that the products added to the wishlist have prices and available stock assigned, and the records have been re-saved to ensure all database fields are populated.
• I have also tried deleting all existing wishlist items and adding fresh ones after the update to ensure no 'stale' data was causing the conflict, but the array_column error persists immediately upon adding a new item.

Request:

It appears the Product List addon is returning false from a database query rather than an array, causing the array_column crash. Could you please check if there is a schema mismatch in my #__easystore_wishlists table or a specific compatibility issue with the current build and PHP 8.3? 

In the hidden information field I have provided a temporary Super Admin login as well as the ‘fake’ customer login I have been testing.