I think my MAGENTO site has a corrupted DB (due to a wrong migration from a different SQL server). I need to fix this problem that is continuosly causing bug on my pages (maybe one day they work and one day no). I think there is a standard procedure (I found on the internet). At the end I expect my site to be as it is now, same template, same installed extensions... but a working DB with no bugs. Here is the procedure I found on the internet.. It is not suggested to try and fix the DB manually because it will only create more problems. http://www.learnmagento.org/magento-bug-fixes/repair-magento-database/#