Encoder license is expired for Extendware_EWPageCache

#0 /var/www/vhosts/startfitness.co.uk/htdocs_new/app/code/local/Extendware/EWPageCache/Model/Request/Processor/Secondary.php(214): Mage::throwException()
#1 /var/www/vhosts/startfitness.co.uk/htdocs_new/app/code/local/Mage/Core/functions.php(68): include('/var/www/vhosts...')
#2 [internal function]: __autoload('Extendware_EWPa...')
#3 [internal function]: spl_autoload_call('Extendware_EWPa...')
#4 /var/www/vhosts/startfitness.co.uk/htdocs_new/app/code/core/Mage/Core/Model/Config.php(1352): class_exists('Extendware_EWPa...')
#5 /var/www/vhosts/startfitness.co.uk/htdocs_new/app/Mage.php(462): Mage_Core_Model_Config->getModelInstance('ewpagecache/req...', Array)
#6 /var/www/vhosts/startfitness.co.uk/htdocs_new/app/code/local/Extendware/EWPageCache/Controller/Override/Mage/Core/Varien/Front.php(18): Mage::getModel()
#7 /var/www/vhosts/startfitness.co.uk/htdocs_new/app/code/core/Mage/Core/Model/App.php(354): Extendware_EWPageCache_Controller_Override_Mage_Core_Varien_Front->dispatch()
#8 /var/www/vhosts/startfitness.co.uk/htdocs_new/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#9 /var/www/vhosts/startfitness.co.uk/htdocs_new/index.php(96): Mage::run('fitness_en', 'store')
#10 {main}