dbModel read resource does not implement Zend_Db_Adapter_Abstract

#0 /home/x084vm19/public_html/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php(134): Varien_Data_Collection_Db->setConnection(false)
#1 /home/x084vm19/public_html/app/code/core/Mage/Core/Model/Config.php(1350): Mage_Core_Model_Resource_Db_Collection_Abstract->__construct(Object(Mage_Core_Model_Resource_Website))
#2 /home/x084vm19/public_html/app/code/core/Mage/Core/Model/Config.php(1386): Mage_Core_Model_Config->getModelInstance('core_resource/w...', Object(Mage_Core_Model_Resource_Website))
#3 /home/x084vm19/public_html/app/Mage.php(460): Mage_Core_Model_Config->getResourceModelInstance('core/website_co...', Object(Mage_Core_Model_Resource_Website))
#4 /home/x084vm19/public_html/app/code/core/Mage/Core/Model/Abstract.php(208): Mage::getResourceModel('core/website_co...', Object(Mage_Core_Model_Resource_Website))
#5 /home/x084vm19/public_html/app/code/core/Mage/Core/Model/Abstract.php(213): Mage_Core_Model_Abstract->getResourceCollection()
#6 /home/x084vm19/public_html/app/code/core/Mage/Core/Model/App.php(598): Mage_Core_Model_Abstract->getCollection()
#7 /home/x084vm19/public_html/app/code/core/Mage/Core/Model/App.php(456): Mage_Core_Model_App->_initStores()
#8 /home/x084vm19/public_html/app/code/core/Mage/Core/Model/App.php(342): Mage_Core_Model_App->_initCurrentStore('autosbarriola_c...', 'website')
#9 /home/x084vm19/public_html/app/Mage.php(640): Mage_Core_Model_App->run(Array)
#10 /home/x084vm19/public_html/index.php(80): Mage::run('autosbarriola_c...', 'website')
#11 {main}