Tried updating a 1.5.5f site to the latest OPC only to find that a "hidden" mod was messing with us. That's why I like mod list.

Anywho, after two tries at updating, we removed OPC completely and started over as if it never existed.

Followed all the preliminary functions including the editing of the shipping estimators. Had haredo following all the steps as we did the 155f folder, then the 156b, then the install.

The admin stated that the OPC was installed BUT the Configuration Menu does not show the item. Mod List shows OPC and it can be accessed from the mod list page.

All listings are in the three database tables as per a working version on another site.

When accessing checkout, we get the following error.
Code:
[04-Mar-2020 06:29:38 UTC] PHP Parse error: syntax error, unexpected ')', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /home/the_site/public_html/includes/modules/pages/checkout_one/header_php.php on line 355

[04-Mar-2020 06:29:38 UTC] Request URI: /index.php?main_page=checkout_one, IP address: 261.117.816.919
--> PHP Parse error: syntax error, unexpected ')', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /home/the_site/public_html/includes/modules/pages/checkout_one/header_php.php on line 355.
Payment is Square and shipping is Flat or Store Pickup.