Please delete the contents of the cache and administrator/cache directories. This is something that will be fixed in Joomla! 3.2.1. It has to do with the way the tables are cached by the Joomla! RAD Layer (I am its lead developer). I have already spotted the bug and we have already added the fix, it will be included in Joomla! 3.2.1.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!