I've downloaded and installed IM+ 8.14 Lite on my E72. Firstly I thought it was only a commercial version and obtained no difference from IM+ 8.11.
Then I entered the license code to upgrade IM+ 8.14 Lite to Full version. Then I had the full licensed IM+ 8.14. Amazingly it worked as a charm. Now I can be invisible/available whenever I want, I can also set my customized status. Most importantly IM+ no longer crashes or auto exits, great!
Thank you ShapeServices for your well-done job!