I find your post only somewhat intelligible, however, if you're getting the ENGINE ERROR message, I'd guess that you're using DCS 4.2 or earlier and that you have at least one lashup in your remote.
If so, there's a good chance that you're experiencing a bug that was corrected in DCS 4.30 and later software releases. If that's the case, read on.
Change the DCS ID#'s of any lashups that are present in your remote to some other, unused, DCS ID#. If there's a lashup with the DCS ID# 1, and if the Hudson is a new engine or one that was recently factory reset, change that lashup's DCS ID# first and then try to add the Hudson again.