php - Mage registry key "_singleton/tax/observer" already exists -


i have encountered error doing this. error happen in both frontend , backend.

i have tried below action:

flushing cache (delete in var/cache folder) : doesn't work.

went compiler , noticed disabled

tried & running compiler : doesn't work

any suggestions?

trace:  #0 /var/www/vhosts/jomgroupon.com/httpdocs/app/mage.php(222): mage::throwexception('mage registry k...')  #1 /var/www/vhosts/jomgroupon.com/httpdocs/app/mage.php(476): mage::register('_singleton/tax/...', false)  #2 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/model/app.php(1316): mage::getsingleton('tax/observer')  #3 /var/www/vhosts/jomgroupon.com/httpdocs/app/mage.php(447): mage_core_model_app->dispatchevent('catalog_product...', array)  #4 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/catalog/model/resource/product/collection.php(526): mage::dispatchevent('catalog_product...', array)  #5 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/eav/model/entity/collection/abstract.php(885): mage_catalog_model_resource_product_collection->_afterload()  #6 /var/www/vhosts/jomgroupon.com/httpdocs/lib/varien/data/collection.php(301): mage_eav_model_entity_collection_abstract->load()  #7 /var/www/vhosts/jomgroupon.com/httpdocs/app/design/frontend/base/default/template/catalog/product/widget/new/column/new_default_list.phtml(36): varien_data_collection->getitems()  #8 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/template.php(241): include('/var/www/vhosts...')  #9 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/template.php(272): mage_core_block_template->fetchview('frontend/base/d...')  #10 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/template.php(286): mage_core_block_template->renderview()  #11 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/abstract.php(863): mage_core_block_template->_tohtml()  #12 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/text/list.php(43): mage_core_block_abstract->tohtml()  #13 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/abstract.php(863): mage_core_block_text_list->_tohtml()  #14 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/abstract.php(582): mage_core_block_abstract->tohtml()  #15 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/abstract.php(526): mage_core_block_abstract->_getchildhtml('right', true)  #16 /var/www/vhosts/jomgroupon.com/httpdocs/app/design/frontend/default/skytheme/template/page/2columns-right.phtml(58): mage_core_block_abstract->getchildhtml('right')  #17 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/template.php(241): include('/var/www/vhosts...')  #18 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/template.php(272): mage_core_block_template->fetchview('frontend/defaul...')  #19 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/template.php(286): mage_core_block_template->renderview()  #20 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/block/abstract.php(863): mage_core_block_template->_tohtml()  #21 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/model/layout.php(555): mage_core_block_abstract->tohtml()  #22 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/controller/varien/action.php(390): mage_core_model_layout->getoutput()  #23 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/local/gclone/deal/controllers/indexcontroller.php(72): mage_core_controller_varien_action->renderlayout()  #24 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/controller/varien/action.php(419): gclone_deal_indexcontroller->viewaction()  #25 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/controller/varien/router/standard.php(250): mage_core_controller_varien_action->dispatch('view')  #26 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/controller/varien/front.php(176): mage_core_controller_varien_router_standard->match(object(mage_core_controller_request_http))  #27 /var/www/vhosts/jomgroupon.com/httpdocs/app/code/core/mage/core/model/app.php(354): mage_core_controller_varien_front->dispatch()  #28 /var/www/vhosts/jomgroupon.com/httpdocs/app/mage.php(683): mage_core_model_app->run(array)  #29 /var/www/vhosts/jomgroupon.com/httpdocs/index.php(87): mage::run('', 'store')  #30 {main}

check file: /var/www/vhosts/jomgroupon.com/httpdocs/app/code/local/gclone/deal/controllers/indexcontroller.php if have call mage::register() method

mage::register('_singleton/tax/observer', $theobject)

then change call adding third parameter true: mage::register('_singleton/tax/observer', $theobject, true);

for further explanation please see: error processing request: mage registry key "_singleton/callforprice/observer" exists


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