Your post obviously missed everyone's attention. lol
This will happen after 1. you receive a message to say LW has detected a corruption in a present download. And you have a choice of continuing or cancelling the downld. It looks to me like you have cancelled the download & pressed the option to "Always use this answer." The way to undo this is go to LW's prefs, View>Popups & click the Revert to Default option. Press Apply button of course.
You should be careful of when LW detects a corruption. Sometimes it can be as simple as the id3 tag or title has changed slightly since LW originally downloaded the hash of the file. But the file itself may well be fine.