Blank admin login page

I recently upgraded to 1.5.4 and everything seems OK except I get a blank login page. Log says:

Fatal error: Class 'zcObserverLogEventListener' not found in /home/content/x/x/x/xxxxx/html/STORE/includes/autoload_func.php on line 79

I host with Godaddy and my account uses PHP 5.3

I found a similar error message in the forum (not exact) and I'm wondering if the 5.3 might be the problem.

Any help would be appreciated.

Thanks.

Check if you copied all the new files for zc 1.5.4

I'm also having the same problem. Upgrade from 1.5.1 to 1.5.4 on test site using MAMP. Home page loads fine. Admin just shows a blank page.

Error message is: Fatal error: Call to undefined function zen_parse_url() in /Applications/MAMP/htdocs/ZenCart/ADMIN/includes/configure.php on line 30

Lines 29-32 in configure.php file are:

define('DIR_WS_ADMIN', preg_replace('#^' . str_replace('-', '-', zen_parse_url(HTTP_SERVER, '/path')) . '#', '', dirname($_SERVER['SCRIPT_NAME'])) . '/');
define('DIR_WS_CATALOG', '/');
define('DIR_WS_HTTPS_ADMIN', preg_replace('#^' . str_replace('-', '-', zen_parse_url(HTTPS_SERVER, '/path')) . '#', '', dirname($_SERVER['SCRIPT_NAME'])) . '/');
define('DIR_WS_HTTPS_CATALOG', '/');

I'm stuck and want to test locally before I go live with this upgrade.

Best,

Gavin

GavinHeron:

Error message is: Fatal error: Call to undefined function zen_parse_url() in /Applications/MAMP/htdocs/ZenCart/ADMIN/includes/configure.php on line 30
That reveals that you didn't upgrade your /admin/includes/application_top.php file, which is where the zen_parse_url() function is defined.
If you missed that file, it may be worth checking all your files in case you missed others too.