Unable to retrieve twitter feed

#0 /home/fisheye/public_html/shop/app/code/local/Fisheye/Twitter/Model/Api.php(28): Fisheye_Twitter_Model_Api->fetch_tweets()
#1 /home/fisheye/public_html/shop/app/design/frontend/default/default/template/fisheye/twitter/twitter.phtml(4): Fisheye_Twitter_Model_Api->getTweets()
#2 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Block/Template.php(216): include('/home/fisheye/p...')
#3 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Block/Template.php(247): Mage_Core_Block_Template->fetchView('frontend/defaul...')
#4 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Block/Template.php(261): Mage_Core_Block_Template->renderView()
#5 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Block/Abstract.php(758): Mage_Core_Block_Template->_toHtml()
#6 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Block/Abstract.php(556): Mage_Core_Block_Abstract->toHtml()
#7 /home/fisheye/public_html/shop/app/design/frontend/default/default/template/page/home.phtml(120): Mage_Core_Block_Abstract->getBlockHtml('twitter_index_i...')
#8 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Block/Template.php(216): include('/home/fisheye/p...')
#9 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Block/Template.php(247): Mage_Core_Block_Template->fetchView('frontend/defaul...')
#10 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Block/Template.php(261): Mage_Core_Block_Template->renderView()
#11 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Block/Abstract.php(758): Mage_Core_Block_Template->_toHtml()
#12 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Model/Layout.php(529): Mage_Core_Block_Abstract->toHtml()
#13 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Controller/Varien/Action.php(389): Mage_Core_Model_Layout->getOutput()
#14 /home/fisheye/public_html/shop/app/code/core/Mage/Cms/Helper/Page.php(130): Mage_Core_Controller_Varien_Action->renderLayout()
#15 /home/fisheye/public_html/shop/app/code/core/Mage/Cms/Helper/Page.php(52): Mage_Cms_Helper_Page->_renderPage(Object(Mage_Cms_IndexController), 'home')
#16 /home/fisheye/public_html/shop/app/code/core/Mage/Cms/controllers/IndexController.php(45): Mage_Cms_Helper_Page->renderPage(Object(Mage_Cms_IndexController), 'home')
#17 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Cms_IndexController->indexAction()
#18 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(253): Mage_Core_Controller_Varien_Action->dispatch('index')
#19 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#20 /home/fisheye/public_html/shop/app/code/core/Mage/Core/Model/App.php(340): Mage_Core_Controller_Varien_Front->dispatch()
#21 /home/fisheye/public_html/shop/app/Mage.php(596): Mage_Core_Model_App->run(Array)
#22 /home/fisheye/public_html/shop/index.php(81): Mage::run('', 'store')
#23 {main}