This tutorial is for the Question Locale and Attachment Count bugs fix after upgrade to 3.4.0; and also include the date bug in old version.
Date Tools: Diary date error, you need to adjust whole or in part;
Convert Question Lo cale:? Upgrade BUG language errors occur after 3.4.0. Note clicking fix the problem after all non-default language will be converted into the current language;
Fix Attachment Count: only for attachment data error after upgrade to 3.4.0