Notice: Trying to access array offset on value of type bool  in /home/derege1q/public_html/app/code/local/Amasty/Fpc/Model/Observer.php on line 213

#0 /home/derege1q/public_html/app/code/local/Amasty/Fpc/Model/Observer.php(213): mageCoreErrorHandler(8, 'Trying to acces...', '/home/derege1q/...', 213, Array)
#1 /home/derege1q/public_html/app/code/core/Mage/Core/Model/App.php(1374): Amasty_Fpc_Model_Observer->layoutRenderBefore(Object(Varien_Event_Observer))
#2 /home/derege1q/public_html/app/code/core/Mage/Core/Model/App.php(1353): Mage_Core_Model_App->_callObserverMethod(Object(Amasty_Fpc_Model_Observer), 'layoutRenderBef...', Object(Varien_Event_Observer))
#3 /home/derege1q/public_html/app/Mage.php(451): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#4 /home/derege1q/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(384): Mage::dispatchEvent('controller_acti...')
#5 /home/derege1q/public_html/app/code/core/Mage/Catalog/controllers/CategoryController.php(161): Mage_Core_Controller_Varien_Action->renderLayout()
#6 /home/derege1q/public_html/app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Catalog_CategoryController->viewAction()
#7 /home/derege1q/public_html/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#8 /home/derege1q/public_html/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#9 /home/derege1q/public_html/app/code/core/Mage/Core/Model/App.php(381): Mage_Core_Controller_Varien_Front->dispatch()
#10 /home/derege1q/public_html/app/Mage.php(686): Mage_Core_Model_App->run(Array)
#11 /home/derege1q/public_html/index.php(83): Mage::run('', 'store')
#12 {main}