First thing to do is get some pics of it. And post them here in your post. Good pics, not crappy ones.
And then call Marlin and talk to those guys there. They can help diagnose what happened.
That will be your best option at this point! Sometimes its hard to get them to reply to the forum, Brendon does try to check the forum, but it usually is on his own time.
that IS assuming it was a Marlin adapter and not some "imitation"