Chances are LW deleted the connection file as soon as it opened due to the connection file's modification date being more than 30 days old (it is not known if the period is 28 or 30 days or a month.) LimeStart will prevent this from happening & there is a specific LimeStart available for each of Windows, MacOSX & Linux.

There's also an optional security block list which will help block out the worst of spam but not all. But will also help to prevent the hostile hosts (bots) that are known to do other things other than spam, such as upload slot suckers filling your upload slots to prevent you sharing to others, DDoS hostile hosts, & survey bots that will browse you periodically multiple times each hour or soon after your LW connects each session.