Hello zultar,
Can you please collect the diagnostic report as described here
viewtopic.php?f=3&t=434, attach it to your post or open a support ticket with it, and then I will see what does it say.
Please collect it when Espionage is running, I know it is hard but if it is not running then the files will be less good.
What you could as well do is to disable the folder(s) in Espionage so that it is running but it does not control the folders. Do not remove the folders from espionage, this will restore them back, just disable them and use your mac for a while, see if it is OK.
If all fine, you can do one more step, and this is to download ivisible (
http://www.macupdate.com/app/mac/24682/ivisible) make your invisible files visible, and then go into the encrypted folder (which is still not enabled in Espionage). You will see a hidden disk image named same as the folder. Doubleclick it to mount, enter password, and use it as normal. See if the Mac is still stable.
Let me know how it went.
Cheers
Zsolt