Quote Originally Posted by jeking View Post
Zen Cart 1.5.5f
Template is M o z e n (forum won't let me post that word without the spaces)
OPC 2.3.4

I did follow the steps for 1.5.5f on GitHub

When trying to checkout, I'm getting a 500 error:
[26-Oct-2020 09:29:39 America/Chicago] PHP Parse error: syntax error, unexpected ')', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /XXX/includes/modules/pages/checkout_one/header_php.php on line 355

Clearly this file is not the root cause. But if that's not the cause, where do I go looking for the real issue?
look for a double colon , ie ::

T_PAAMAYIM_NEKUDOTAYIM: It’s a name for the :: operator in PHP. It literally means "double colon". For some reason they named it in Hebrew. Check your code syntax, and put a :: where appropriate.

best.