Using 1.5.8a, PHP 8.1.2 and rebuilding a site from the ground up. Took a chance and installed Numinix's Product Fields module as I need to add more display fields on the product info pages. Followed instructions carefully (including not renaming admin folders in the one directory it said not to). Appears to be fully functional on the Admin side--I'm able to create new fields, add and delete fields, input info when creating or editing products, etc.

However, when I go to add code to the customer-facing product info page the site crashes--unable to load the remainder of the page. It appears to be an issue with the includes/templates/your_template/product_info/extra_main_template_vars/numinix_product_fields.php file. Log showed this error, although not sure if that is the root cause or not:

--> PHP Fatal error: Uncaught Error: Undefined constant "SHOW_PRODUCT_INFO_DIAMETER" in /home/mywebsite/public_html/includes/templates/bootstrap/product_info/extra_main_template_vars/numinix_product_fields.php:13

I'm not skilled enough with php, etc. to pinpoint the problem, but I'm guessing there was a change with how the product info fields are called in 1.5.8 since some of the coding looks different? Anyone able to point me in the right direction or take a look to see if there's an easy way to get this fixed so I can display the fields on the customer-facing pages?

Thanks in advance!