This is a known bug in this version, we have already submitted a fix to the App Store, awaiting review. This occurs when the script is completely empty. The workaround is to quit HaikuHelper and move away or rename Haiku.sqlite from the /Users/yourusername/Library/Application Support /com.nullriver.HaikuHelper2 folder. This will reset HaikuHelper's settings to default and you will have to re add the controller. Otherwise you can wait for the next update which should be out in a few days.