error occurred when trying to import data

see the screen shot for exact error, I installed Windows LiveMail and imported the settings, and messages from old computer. Then installed EM Client and attempted to import messages.
Brand new laptop with Windows 7 Pro, email account imported without issues. But message folder hangs up on second storage folder. 

Try the 7.1 Beta 2.  It apparently has greatly improved the WLM import process.
www.emclient.com/blog