Error in Cubase 7.5.30

I have a problem with using Cubase. After upgrading from 7.5.20 version to 7.5.30 version the program is getting off incorrectly.
It always writes the error: win 7 \ 64 _ Intel i7 _ 16Gb _ nVidia 550Ti _
During my work on projects everything is alright,
but the closing of projects (old one, that made ​​in later versions of the software and the new one,
that made in version 7.5.30) always fails.
Hope you can help me with a solution of this problem.
Sincerely, Milan Jovovich