No Error on Magento

Fatal error:Class 'Mage_Adminhtml_Controller_action' not found in BookmarksController.php on line 4

 sol:

Your extended class name is misspelled - Mage_Adminhtml_Controller_action should be Mage_Adminhtml_Controller_Action.

Make sure you:

• included the file in bookmarkscontroller.php
• put BookMarksController is in the right place

Service Temporarily Unavailable Magento?

sol:

 

Check if there is a file called maintenance.flag in your magento root. If so Delete it.
When Magento is performing certain tasks it temporarily creates this file. Magento checks for its existence and if it's there will send users to the page you described.
It's supposed to automatically delete this file when done processing whatever task it was doing, but I've experienced occasions where something went wrong and it failed to delete it.
 

 

Simple Delete the maintenance.flag file in root folder and than delete cache folder inside var/ folder.

 

 

 

simply deleted cache and sessions files and all worked again.