Warning: session_start(): open(/srv/www/clients/client6/web18/tmp/sess_moh5btqe205sehoe53f8te75o1, O_RDWR) failed: No space left on device (28)  in /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php on line 123

#0 [internal function]: mageCoreErrorHandler(2, 'session_start()...', '/srv/www/client...', 123, Array)
#1 /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php(123): session_start()
#2 /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php(166): Mage_Core_Model_Session_Abstract_Varien->start(NULL)
#3 /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/Model/Session/Abstract.php(84): Mage_Core_Model_Session_Abstract_Varien->init('core', NULL)
#4 /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/Model/Session.php(42): Mage_Core_Model_Session_Abstract->init('core', NULL)
#5 /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/Model/Config.php(1348): Mage_Core_Model_Session->__construct(Array)
#6 /srv/www/clients/client6/web18/web/app/Mage.php(462): Mage_Core_Model_Config->getModelInstance('core/session', Array)
#7 /srv/www/clients/client6/web18/web/app/Mage.php(476): Mage::getModel('core/session', Array)
#8 /srv/www/clients/client6/web18/web/app/code/local/Df/Core/Helper/Mage/Core.php(95): Mage::getSingleton('core/session')
#9 /srv/www/clients/client6/web18/web/app/code/local/Df/Core/lib/fp/other.php(692): Df_Core_Helper_Mage_Core->session()
#10 /srv/www/clients/client6/web18/web/app/code/local/Df/Licensor/Model/Validator/ServerTime.php(90): rm_session()
#11 /srv/www/clients/client6/web18/web/app/code/local/Df/Licensor/Model/CachedSingleton.php(50): Df_Licensor_Model_Validator_ServerTime->isValid()
#12 /srv/www/clients/client6/web18/web/app/code/local/Df/Core/lib/fp/licensor.php(18): Df_Licensor_Model_CachedSingleton->isEnabled()
#13 /srv/www/clients/client6/web18/web/app/code/local/Df/Core/Model/Url/Rewrite.php(85): df_enabled('seo')
#14 /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/Model/Url/Rewrite.php(231): Df_Core_Model_Url_Rewrite->loadByRequestPath(Array)
#15 /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/Controller/Varien/Front.php(166): Mage_Core_Model_Url_Rewrite->rewrite()
#16 /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#17 /srv/www/clients/client6/web18/web/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#18 /srv/www/clients/client6/web18/web/index.php(88): Mage::run('', '')
#19 {main}

Fatal error: Uncaught exception 'Exception' with message 'User Warning: unable to send log entries via email; message = Unable to send mail. ; code = 0; exception class = Zend_Mail_Transport_Exception in /srv/www/clients/client6/web18/web/lib/Zend/Log/Writer/Mail.php on line 407' in /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/functions.php:245 Stack trace: #0 [internal function]: mageCoreErrorHandler(512, 'unable to send ...', '/srv/www/client...', 407, Array) #1 /srv/www/clients/client6/web18/web/lib/Zend/Log/Writer/Mail.php(407): trigger_error('unable to send ...', 512) #2 /srv/www/clients/client6/web18/web/lib/Zend/Log.php(285): Zend_Log_Writer_Mail->shutdown() #3 [internal function]: Zend_Log->__destruct() #4 {main} thrown in /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/functions.php on line 245

Fatal error: Uncaught exception 'Exception' with message 'Warning: Unknown: open(/srv/www/clients/client6/web18/tmp/sess_moh5btqe205sehoe53f8te75o1, O_RDWR) failed: No space left on device (28) in Unknown on line 0' in /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/functions.php:245 Stack trace: #0 [internal function]: mageCoreErrorHandler(2, 'Unknown: open(/...', 'Unknown', 0, NULL) #1 {main} thrown in /srv/www/clients/client6/web18/web/app/code/core/Mage/Core/functions.php on line 245