Finding lost tracks, problem. Not use the following character

Im new here. I am trying to find lost tracks. I have directed Lexicon. to the new folder where the tracks are but I get the message "You may not use the follow characters: \ : " I haven’t typed it in and don’t know how to fix this. any help please?

Please use the / instead of \

thanks. FYI, Lexicon actually generated the file path with the error not me.