You can get a detail

You can get a detail explanation @ http://knol.google.com/k/andy-pellew/reparing-the-xxx-is-not-a-valid/v4b5tu39zysj/15# In short try the below steps Step 1: Log in and select the "Functional Administrator" responsibility Step 2: Select "Core Services" (the tab at the top right) Step 3: Select "Caching Framework" (second option from the right on blue bar) Step 4: Select "Global Configuration" (bottom option on the left) Step 5: Click "Clear All Cache"