filter finder objekts -> spotlight search not possible

I created a workflow to copy some files to a backup folder that works fine.
Now I wanted to add an additional step and delete compressed files with suffix .zip.
But the function “filter finder objects” causes the error: “spotlight search not possible”
(maybe english translation not identical to the german message).!ApXfX7ALuGy5nRXWDH5QK5jxqb1a