Ok, so after trial and error method I think I have achieved success.
My solution is tricky, and at least weird, but since it has worked for me maybe it will work for future users.
Matlab has saved one of my files (I was using it just before the accident). To my suprise the file worked properly. So I have located localization of the file (via "show in Explorer") and Then i have copy-pasted all of my files.
I still dont know how did that accident happen.
