Promaster SystemPro Universal Light Stand Adapter "adapt new changes" Questions

...variety of cameras that Metz supports. You can go to http://www.metz.de/en/photo_electronics/sca_adaptersuche.143.html for the interactive tool for current flash. For those of us who cannot afford ...

I have a Nikon promaster FL120 flash. I put new batteries in it and now it won't work. What could be the issue? If it was working and the only thing you did was change batteries. it can really only be