Computer crashed after installed new version of CIS

hello, I’m not a new user of CIS. I’ve been using comodo firewall from the version of 2.X. Recently I updated it from the version of 3.8 to 3.9. I’m glad that the new version support my language. However, every time I shut down my computer, the windows just crashed and displayed a bule screen ???. Here are some tech info:

stop:0x00000050(0xcc15ffda, 0x00000000, 0x8ela595f, 0x00000002)

It is obviously related to the new version of CIS(because of the “cmdguard.sys”), and I’ve never been like this before. Other function works fine. Could any one help me? Thanks!
My os is Vista 32bit without any other security software.

Try to find and upload a minidump if there was one created.

^_^Thanks to the efficient support team! With today’s update, the issue was fixed.