URGENT - Fix Magento 1.9.0.1 store that is throwing error messages

We have a Magento 1.9.0.1 site that started throwing error messages yesterday. I need someone who knows these errors and can fix it Immediately! Here are some of the errors --- [11-Apr-2016 11:37:49 UTC] PHP Fatal error: Call to a member function isRequired() on a non-object in /chroot/home/XXXX/XXXXX/html/app/code/core/Mage/Captcha/Model/[login to view URL] on line 167 [11-Apr-2016 11:44:40 UTC] PHP Fatal error: Call to a member function isRequired() on a non-object in /chroot/home/XXXX/XXXXX/html/app/code/core/Mage/Captcha/Model/[login to view URL] on line 167 [11-Apr-2016 11:50:49 UTC] PHP Fatal error: Call to a member function getBlockName() on a non-object in /chroot/home/XXXX/XXXXX/html/app/code/core/Mage/Captcha/Block/[login to view URL] on line 43 [11-Apr-2016 11:51:28 UTC] PHP Fatal error: Call to a member function isRequired() on a non-object in /chroot/home/XXXX/XXXXX/html/app/code/core/Mage/Captcha/Model/[login to view URL] on line 167 [11-Apr-2016 11:58:19 UTC] PHP Fatal error: Call to a member function isRequired() on a non-object in /chroot/home/XXXX/XXXXX/html/app/code/core/Mage/Captcha/Model/[login to view URL] on line 167 [11-Apr-2016 12:01:59 UTC] PHP Fatal error: Call to a member function getBlockName() on a non-object in /chroot/home/XXXX/XXXXX/html/app/code/core/Mage/Captcha/Block/[login to view URL] on line 43 ----- Front controller reached 100 router match iterations Trace: #0 /chroot/home/XXXX/XXXXX/html/var/cache/ew/files/52/17/Mage/Core/Controller/Varien/[login to view URL](198): Mage::throwException('Front controlle...') #1 /chroot/home/XXXX/XXXXX/html/app/code/local/Extendware/EWPageCache/Controller/Override/Mage/Core/Varien/[login to view URL](17) : eval()'d code(17): Mage_Core_Controller_Varien_FrontOverriddenClass->dispatch() #2 /chroot/home/XXXX/XXXXX/html/app/code/core/Mage/Core/Model/[login to view URL](354): Extendware_EWPageCache_Controller_Override_Mage_Core_Varien_Front->dispatch() #3 /chroot/home/XXXX/XXXXX/html/app/[login to view URL](684): Mage_Core_Model_App->run(Array) #4 /chroot/home/XXXX/XXXXX/html/[login to view URL](87): Mage::run('', 'store') #5 {main}