My admin was showing blank pages in configuration/system. Other pages were fine. Forum said it was probably a bad extension. Forum said to delete the XML modules , test , and then upload back.
/home/audiobuy/production/source/app/etc/modules
I copied XML files locally , deleted them , then uploaded back.
Now I get this error below - can anyone help please?
Can't retrieve entity config: core/store_group
Trace: #0 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Resource.php(282): Mage::throwException('Can't retrieve ...') #1 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Resource/Db/Abstract.php(284): Mage_Core_Model_Resource->getTableName('core/store_grou...') #2 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Resource/Db/Abstract.php(247): Mage_Core_Model_Resource_Db_Abstract->getTable('store_group') #3 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php(155): Mage_Core_Model_Resource_Db_Abstract->getMainTable() #4 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php(192): Mage_Core_Model_Resource_Db_Collection_Abstract->getMainTable() #5 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Resource/Db/Collection/Abstract.php(135): Mage_Core_Model_Resource_Db_Collection_Abstract->_initSelect() #6 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Config.php(1357): Mage_Core_Model_Resource_Db_Collection_Abstract->__construct(Object(Mage_Core_Model_Resource_Store_Group)) #7 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Config.php(1389): Mage_Core_Model_Config->getModelInstance('core_resource/s...', Object(Mage_Core_Model_Resource_Store_Group)) #8 /home/audiobuy/production/source/app/Mage.php(491): Mage_Core_Model_Config->getResourceModelInstance('core/store_grou...', Object(Mage_Core_Model_Resource_Store_Group)) #9 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Abstract.php(208): Mage::getResourceModel('core/store_grou...', Object(Mage_Core_Model_Resource_Store_Group)) #10 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/Abstract.php(213): Mage_Core_Model_Abstract->getResourceCollection() #11 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/App.php(624): Mage_Core_Model_Abstract->getCollection() #12 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/App.php(477): Mage_Core_Model_App->_initStores() #13 /home/audiobuy/production/source/app/code/core/Mage/Core/Model/App.php(360): Mage_Core_Model_App->_initCurrentStore('hk', 'website') #14 /home/audiobuy/production/source/app/Mage.php(684): Mage_Core_Model_App->run(Array) #15 /home/audiobuy/production/source/index.php(90): Mage::run('hk', 'website') #16 {main}
It seems there is some problem with your magento environment configuration i would suggest you to check your local.xml and config.xml like is it corrupted or something else. there are some ways to trace down this issue please find below link it might help you.
Can't retrieve entity config: core/store_group
If my answer is useful, please Accept as Solution & give Kudos
Shubham Khandelwal