Front controller reached 100 router match iterations

#0 /var/www/3g/portcigar/htdocs/app/code/core/Mage/Core/Controller/Varien/Front.php(165): Mage::throwException('Front controlle...')
#1 /var/www/3g/portcigar/htdocs/app/Mage.php(457): Mage_Core_Controller_Varien_Front->dispatch()
#2 /var/www/3g/portcigar/htdocs/index.php(55): Mage::run()
#3 {main}