Invalid block type: Mage_Core_Block_Text_Copy

Symptoms

The following exception is generated on attempt to browse any page:

exception 'Mage_Core_Exception' with message 'Invalid block type: Mage_Core_Block_Text_Copy' in app/Mage.php:594
Stack trace:
#0 app/code/core/Mage/Core/Model/Layout.php(495): Mage::throwException('Invalid block t...')
#1 app/code/core/Mage/Core/Model/Layout.php(437): Mage_Core_Model_Layout->_getBlockInstance('core/text_copy', Array)
#2 app/code/core/Mage/Core/Model/Layout.php(472): Mage_Core_Model_Layout->createBlock('core/text_copy', '')
#3 app/code/core/Mage/Core/Model/Layout.php(239): Mage_Core_Model_Layout->addBlock('core/text_copy', '')
#4 app/code/core/Mage/Core/Model/Layout.php(205): Mage_Core_Model_Layout->_generateBlock(Object(Mage_Core_Model_Layout_Element), Object(Mage_Core_Model_Layout_Element))

Cause

The exception is caused by error in Gala Eva theme layout file app/design/frontend/galaeva/default/layout/page.xml

Solution

Solution is to remove offending block with core/text_copy type, as such type does not exists, edit app/design/frontend/galaeva/default/layout/page.xml, locate the following block:

            <block type="core/text_list" name="before_body_end" as="before_body_end" translate="label">
                <label>Page Bottom</label>
                                <block type="core/text_copy" />
            </block>