Moving Acrobat Droplets from to a new Mac

I have a series of Acrobat Droplets that I created some time ago which I run from the doc on my Mac. Nothing too complexed (one is to remove crops, another is to outline fonts and another is to remove a layer with a specified name from a PDF). Just drag and drop the PDF onto the Droplet. They are all set to open, save and close the selected PDF. 

I have just done a OS fresh install on my Mac and now none of them seem to work. They initially show as a folder Icon. The first time I launch I get a message that the app is damaged with the option to move to bin. If I control click on the droplet it allows me to open and if I then close it I can drag a file to it nd it will attempt to launch. However I will then get a message that the Success folder is invalid (I haven't set a success folder as they are intended to save and close). When I attempt to edit there is no option to Save and Close.

Any ideas appreciated as to how I can fix this so that they just work again?