Error loading catalog_product grid

[paales]

Strict Notice: Only variables should be passed by reference  in app/code/community/BL/CustomGrid/Model/Observer.php(530) : eval()'d code on line 375

#0 app/code/community/BL/CustomGrid/Model/Observer.php(530) : eval()'d code(375): mageCoreErrorHandler(2048, 'Only variables ...', '/Users/paales/S...', 375, Array)
#1 app/code/community/BL/CustomGrid/Model/Grid.php(1877): BL_CustomGrid_Block_Rewrite_Catalog_Product_Grid->blcg_removeColumn('action')
#2 app/code/community/BL/CustomGrid/Model/Observer.php(908): BL_CustomGrid_Model_Grid->applyColumnsToGridBlock(Object(BL_CustomGrid_Block_Rewrite_Catalog_Product_Grid), true)
#3 app/code/community/BL/CustomGrid/Model/Observer.php(530) : eval()'d code(81): BL_CustomGrid_Model_Observer->afterGridPrepareCollection(Object(BL_CustomGrid_Block_Rewrite_Catalog_Product_Grid))
#4 app/code/core/Mage/Adminhtml/Block/Widget/Grid.php(626): BL_CustomGrid_Block_Rewrite_Catalog_Product_Grid->_prepareCollection()
#5 app/code/core/Mage/Adminhtml/Block/Widget/Grid.php(632): Mage_Adminhtml_Block_Widget_Grid->_prepareGrid()
#6 app/code/core/Mage/Core/Block/Abstract.php(862): Mage_Adminhtml_Block_Widget_Grid->_beforeToHtml()
#7 app/code/core/Mage/Core/Block/Abstract.php(582): Mage_Core_Block_Abstract->toHtml()
#8 app/code/core/Mage/Core/Block/Abstract.php(526): Mage_Core_Block_Abstract->_getChildHtml('grid', true)
#9 app/code/core/Mage/Adminhtml/Block/Catalog/Product.php(79): Mage_Core_Block_Abstract->getChildHtml('grid')
#10 app/design/adminhtml/default/default/template/catalog/product.phtml(46): Mage_Adminhtml_Block_Catalog_Product->getGridHtml()
#11 app/code/core/Mage/Core/Block/Template.php(241): include('/Users/paales/S...')
#12 app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#13 app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#14 app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template->_toHtml()
#15 app/code/core/Mage/Adminhtml/Block/Widget/Container.php(308): Mage_Adminhtml_Block_Template->_toHtml()
#16 app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Adminhtml_Block_Widget_Container->_toHtml()
#17 app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml()
#18 app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Core_Block_Text_List->_toHtml()
#19 app/code/core/Mage/Core/Block/Abstract.php(582): Mage_Core_Block_Abstract->toHtml()
#20 app/code/core/Mage/Core/Block/Abstract.php(526): Mage_Core_Block_Abstract->_getChildHtml('content', true)
#21 app/design/adminhtml/default/default/template/page.phtml(74): Mage_Core_Block_Abstract->getChildHtml('content')
#22 app/code/core/Mage/Core/Block/Template.php(241): include('/Users/paales/S...')
#23 app/code/core/Mage/Core/Block/Template.php(272): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#24 app/code/core/Mage/Core/Block/Template.php(286): Mage_Core_Block_Template->renderView()
#25 app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template->_toHtml()
#26 app/code/core/Mage/Core/Block/Abstract.php(863): Mage_Adminhtml_Block_Template->_toHtml()
#27 app/code/core/Mage/Core/Model/Layout.php(555): Mage_Core_Block_Abstract->toHtml()
#28 app/code/core/Mage/Core/Controller/Varien/Action.php(390): Mage_Core_Model_Layout->getOutput()
#29 app/code/core/Mage/Adminhtml/controllers/Catalog/ProductController.php(180): Mage_Core_Controller_Varien_Action->renderLayout()
#30 app/code/core/Mage/Core/Controller/Varien/Action.php(419): Mage_Adminhtml_Catalog_ProductController->indexAction()
#31 app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('index')
#32 app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#33 app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#34 app/Mage.php(683): Mage_Core_Model_App->run(Array)
#35 index.php(87): Mage::run('', 'store')
#36 {main}

[nicolasricci]

Same error with customer grid on 1.4.0.1

Strict Notice: Only variables should be passed by reference in app/code/community/BL/CustomGrid/Model/Observer.php(530) : eval()'d code on line 375

Trace:
#0 app/code/community/BL/CustomGrid/Model/Observer.php(530) : eval()'d code(375): mageCoreErrorHandler(2048, 'Only variables ...', '/var/www/sites/...', 375, Array)
#1 app/code/community/BL/CustomGrid/Model/Grid.php(1877): BL_CustomGrid_Block_Rewrite_Customer_Grid->blcg_removeColumn('action')
#2 app/code/community/BL/CustomGrid/Model/Observer.php(908): BL_CustomGrid_Model_Grid->applyColumnsToGridBlock(Object(BL_CustomGrid_Block_Rewrite_Customer_Grid), true)
#3 app/code/community/BL/CustomGrid/Model/Observer.php(530) : eval()'d code(81): BL_CustomGrid_Model_Observer->afterGridPrepareCollection(Object(BL_CustomGrid_Block_Rewrite_Customer_Grid))
#4 app/code/core/Mage/Adminhtml/Block/Widget/Grid.php(576): BL_CustomGrid_Block_Rewrite_Customer_Grid->_prepareCollection()
#5 app/code/core/Mage/Adminhtml/Block/Widget/Grid.php(582): Mage_Adminhtml_Block_Widget_Grid->_prepareGrid()
#6 app/code/core/Mage/Core/Block/Abstract.php(673): Mage_Adminhtml_Block_Widget_Grid->_beforeToHtml()
#7 app/code/core/Mage/Core/Block/Abstract.php(516): Mage_Core_Block_Abstract->toHtml()
#8 app/code/core/Mage/Core/Block/Abstract.php(467): Mage_Core_Block_Abstract->_getChildHtml('grid', true)
#9 app/code/core/Mage/Adminhtml/Block/Widget/Grid/Container.php(70): Mage_Core_Block_Abstract->getChildHtml('grid')
#10 app/design/adminhtml/default/default/template/widget/grid/container.phtml(36): Mage_Adminhtml_Block_Widget_Grid_Container->getGridHtml()
#11 app/code/core/Mage/Core/Block/Template.php(189): include('/var/www/sites/...')
#12 app/code/core/Mage/Core/Block/Template.php(225): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#13 app/code/core/Mage/Core/Block/Template.php(242): Mage_Core_Block_Template->renderView()
#14 app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template->_toHtml()
#15 app/code/core/Mage/Adminhtml/Block/Widget/Container.php(295): Mage_Adminhtml_Block_Template->_toHtml()
#16 app/code/core/Mage/Core/Block/Abstract.php(674): Mage_Adminhtml_Block_Widget_Container->_toHtml()
#17 app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract->toHtml()
#18 app/code/core/Mage/Core/Block/Abstract.php(674): Mage_Core_Block_Text_List->_toHtml()
#19 app/code/core/Mage/Core/Block/Abstract.php(516): Mage_Core_Block_Abstract->toHtml()
#20 app/code/core/Mage/Core/Block/Abstract.php(467): Mage_Core_Block_Abstract->_getChildHtml('content', true)
#21 app/design/adminhtml/default/default/template/page.phtml(74): Mage_Core_Block_Abstract->getChildHtml('content')
#22 app/code/core/Mage/Core/Block/Template.php(189): include('/var/www/sites/...')
#23 app/code/core/Mage/Core/Block/Template.php(225): Mage_Core_Block_Template->fetchView('adminhtml/defau...')
#24 app/code/core/Mage/Core/Block/Template.php(242): Mage_Core_Block_Template->renderView()
#25 app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template->_toHtml()
#26 app/code/core/Mage/Core/Block/Abstract.php(674): Mage_Adminhtml_Block_Template->_toHtml()
#27 app/code/core/Mage/Core/Model/Layout.php(536): Mage_Core_Block_Abstract->toHtml()
#28 app/code/core/Mage/Core/Controller/Varien/Action.php(389): Mage_Core_Model_Layout->getOutput()
#29 app/code/core/Mage/Adminhtml/controllers/CustomerController.php(83): Mage_Core_Controller_Varien_Action->renderLayout()
#30 app/code/core/Mage/Core/Controller/Varien/Action.php(418): Mage_Adminhtml_CustomerController->indexAction()
#31 app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('index')
#32 app/code/core/Mage/Core/Controller/Varien/Front.php(177): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#33 app/code/core/Mage/Core/Model/App.php(304): Mage_Core_Controller_Varien_Front->dispatch()
#34 app/Mage.php(596): Mage_Core_Model_App->run(Array)
#35 index.php(107): Mage::run('', 'store')
#36 {main}

[mage-eag]

Fixed by aa2ab7e