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2014-07-24T10:37:29+00:00 ERR (3): 
exception 'Mage_Core_Exception' with message 'Invalid block type: Mage_Germansetup_Block_Imprint_Content' in /var/www/domain/live/app/Mage.php:595
Stack trace:
#0 /var/www/domain/live/app/code/core/Mage/Core/Model/Layout.php(495): Mage::throwException('Invalid block t...')
#1 /var/www/domain/live/app/code/core/Mage/Core/Model/Layout.php(437): Mage_Core_Model_Layout->_getBlockInstance('germansetup/imp...', Array)
#2 /var/www/domain/live/app/code/core/Mage/Core/Model/Email/Template/Filter.php(164): Mage_Core_Model_Layout->createBlock('germansetup/imp...', NULL, Array)
#3 [internal function]: Mage_Core_Model_Email_Template_Filter->blockDirective(Array)
#4 /var/www/domain/live/lib/Varien/Filter/Template.php(134): call_user_func(Array, Array)
#5 /var/www/domain/live/app/code/core/Mage/Core/Model/Email/Template/Filter.php(504): Varien_Filter_Template->filter('<style type="te...')
#6 /var/www/domain/live/app/code/core/Mage/Core/Model/Email/Template.php(345): Mage_Core_Model_Email_Template_Filter->filter('<style type="te...')
#7 /var/www/domain/live/app/code/community/AuIt/Pdf/Model/Rewrite/Email/Template.php(84): Mage_Core_Model_Email_Template->getProcessedTemplate(Array)
#8 /var/www/domain/live/app/code/core/Mage/Adminhtml/Block/System/Email/Template/Preview.php(64): AuIt_Pdf_Model_Rewrite_Email_Template->getProcessedTemplate(Array, true)
#9 /var/www/domain/live/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Adminhtml_Block_System_Email_Template_Preview->_toHtml()
#10 /var/www/domain/live/app/code/core/Mage/Core/Block/Abstract.php(637): Mage_Core_Block_Abstract->toHtml()
#11 /var/www/domain/live/app/code/core/Mage/Core/Block/Abstract.php(581): Mage_Core_Block_Abstract->_getChildHtml('content', true)
#12 /var/www/domain/live/app/design/adminhtml/default/default/template/system/email/template/preview.phtml(34): Mage_Core_Block_Abstract->getChildHtml('content')
#13 /var/www/domain/live/app/code/core/Mage/Core/Block/Template.php(241): include('/var/www/interr...')
#14 /var/www/domain/live/app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#15 /var/www/domain/live/app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#16 /var/www/domain/live/app/code/core/Mage/Core/Block/Abstract.php(919): Mage_Core_Block_Template->_toHtml()
#17 /var/www/domain/live/app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#18 /var/www/domain/live/app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#19 /var/www/domain/live/app/code/core/Mage/Adminhtml/controllers/System/Email/TemplateController.php(204): Mage_Core_Controller_Varien_Action->renderLayout()
#20 /var/www/domain/live/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Adminhtml_System_Email_TemplateController->previewAction()
#21 /var/www/domain/live/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('preview')
#22 /var/www/domain/live/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#23 /var/www/domain/live/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#24 /var/www/domain/live/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#25 /var/www/domain/live/index.php(87): Mage::run('base', 'website')
#26 {main}