I am getting this error. It was working fine from six months. I haven't changed anything.


  1. I have changed to Magento default theme.

  2. Updated all core files and extensions.

  3. Changed payment gateway

  4. Change checkout method

Still nott working.

Please check system log and exception.log

Can anybody help me? I tried everything but stuck here 10 hours of troubleshooting.

exception.log https://drive.google.com/file/d/0BwweON8IpmfWaHdqbEJIUUdnRTQ/view?usp=sharing

system.log https://drive.google.com/file/d/0BwweON8IpmfWUW03ZWhkYUVkUTQ/view?usp=sharing


There are a couple of things that might be going on:

First Issue:

2015-09-28T17:11:33+00:00 ERR (3): 

exception 'Zend_Mail_Exception' with message 'Subject set twice' in /var/www/vhosts/theshowerdoctors.ie/httpdocs/lib/Zend/Mail.php:933

The last line in exception.log is this. Seeing the stack trace, I would disable the extension Mage_Advancedsmtp. To do this, open app/etc/modules/Mage_Advancedsmtp.xml, and change the value of the <active> node to be false.

Second Issue:

I don't think this is causing a problem, but it looks to be there is a problem with permissions for your LESS files. Your LESS compiler is triggering an exception, as it can't find the files to compile. Since there is no URLs logged with the stack trace, I can't tell whether this is also causing the problem.

Exception.log: exception 'Exception' with message 'load error: failed to find ...'

System.log:Warning: is_file(): open_basedir restriction in effect. File(.../skin/frontend/mtbelano/default/css/_config/design_default.less) is not within the allowed path(s): (/var/www/vhosts/theshowerdoctors.ie/:/tmp/)  in /var/www/vhosts/theshowerdoctors.ie/httpdocs/lib/Soczed/less/lessc.inc.php on line 2378

This is a PHP open_basedir() issue. The php script cannot access the LESS file. If this is what is causing the problem, then your web host probably changed permissions on your server, which would cause the problem.


I deleted all orders and its working. Some order was clashing and I don't know why. really strange

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