Preview Email

[simon1066]

ZC v1.5.8a
PHP v8.3.7

I thought that simply redefining the language file location from /email_extras.php to /lang.email_extras.php would be enough to get this working with ZC v1.5.8a. While doing so enabled me to access the Admin > Customers > Preview Email page, more work is needed I think as I get this blank page error when trying to preview an email template:

[06-Jun-2024 11:31:26 Europe/London] Request URI: /MY_ADMIN/index.php?cmd=preview_email, IP address: 127.0.0.1, Language id 1
#0 D:\wamp64\www\MY_DOMAIN.co.uk\includes\modules\require_languages.php(13): zen_debug_error_handler()
#1 D:\wamp64\www\MY_DOMAIN.co.uk\MY_ADMIN\includes\functions\extra_functions\preview_email.php(251): require('D:\\wamp64\\www\\k...')
#2 D:\wamp64\www\MY_DOMAIN.co.uk\MY_ADMIN\preview_email.php(58): build_checkout_email()
#3 D:\wamp64\www\MY_DOMAIN.co.uk\MY_ADMIN\index.php(11): require('D:\\wamp64\\www\\k...')
--> PHP Warning: Undefined variable $languageLoader in D:\wamp64\www\MY_DOMAIN.co.uk\includes\modules\require_languages.php on line 13.

[06-Jun-2024 11:31:26 Europe/London] PHP Fatal error:  Uncaught Error: Call to a member function setCurrentPage() on null in D:\wamp64\www\MY_DOMAIN.co.uk\includes\modules\require_languages.php:13
Stack trace:
#0 D:\wamp64\www\MY_DOMAIN.co.uk\MY_ADMIN\includes\functions\extra_functions\preview_email.php(251): require()
#1 D:\wamp64\www\MY_DOMAIN.co.uk\MY_ADMIN\preview_email.php(58): build_checkout_email()
#2 D:\wamp64\www\MY_DOMAIN.co.uk\MY_ADMIN\index.php(11): require('D:\\wamp64\\www\\k...')
#3 {main}
  thrown in D:\wamp64\www\MY_DOMAIN.co.uk\includes\modules\require_languages.php on line 13

[06-Jun-2024 11:31:26 Europe/London] Request URI: /MY_ADMIN/index.php?cmd=preview_email, IP address: 127.0.0.1
--> PHP Fatal error: Uncaught Error: Call to a member function setCurrentPage() on null in D:\wamp64\www\MY_DOMAIN.co.uk\includes\modules\require_languages.php:13
Stack trace:
#0 D:\wamp64\www\MY_DOMAIN.co.uk\MY_ADMIN\includes\functions\extra_functions\preview_email.php(251): require()
#1 D:\wamp64\www\MY_DOMAIN.co.uk\MY_ADMIN\preview_email.php(58): build_checkout_email()
#2 D:\wamp64\www\MY_DOMAIN.co.uk\MY_ADMIN\index.php(11): require('D:\\wamp64\\www\\k...')
#3 {main}
  thrown in D:\wamp64\www\MY_DOMAIN.co.uk\includes\modules\require_languages.php on line 13.