"An error occurred while reading the file"... suddenly

A product (clothing) suddenly stopped working and I got the error message "An error occurred while reading the file".
The log says "Failed to load script:..." and shows the path on my hd where the associated file is located.
I re-installed the product, but the problem is still there.
Does anybody know a solution? thanks in advance
Comments
What file is it? How did you install?
I already solved it by installing the new daz central. Everything works fine again :)