Fatal error: Uncaught Error: Call to a member function unsetChild() on null in /var/www/vhosts/lemonurban.com/httpdocs/app/code/local/Mirasvit/SearchAutocomplete/Block/Layout.php:89 Stack trace: #0 /var/www/vhosts/lemonurban.com/httpdocs/app/code/local/Mirasvit/SearchAutocomplete/Block/Layout.php(58): Mirasvit_SearchAutocomplete_Block_Layout->addForm() #1 /var/www/vhosts/lemonurban.com/httpdocs/app/code/core/Mage/Core/Model/Layout.php(348): Mirasvit_SearchAutocomplete_Block_Layout->addSearchAutocomplete() #2 /var/www/vhosts/lemonurban.com/httpdocs/app/code/core/Mage/Core/Model/Layout.php(214): Mage_Core_Model_Layout->_generateAction(Object(Mage_Core_Model_Layout_Element), Object(Mage_Core_Model_Layout_Element)) #3 /var/www/vhosts/lemonurban.com/httpdocs/app/code/core/Mage/Core/Model/Layout.php(206): Mage_Core_Model_Layout->generateBlocks(Object(Mage_Core_Model_Layout_Element)) #4 /var/www/vhosts/lemonurban.com/httpdocs/app/code/core/Mage/Core/Controller/Varien/Action.php(344): Mage_Core_Model_Layout->generateBlocks() #5 / in /var/www/vhosts/lemonurban.com/httpdocs/app/code/local/Mirasvit/SearchAutocomplete/Block/Layout.php on line 89