I have this problem again. Mega LSZH and LOWW. I just made an FSDT update. Help is very much appreciated. Log attached
Maybe is not clear what the update will do: it will prevent to select a VGDS not available in P3D, so you can't edit it by mistake, but it won't automatically clean up any profiles you made with the wrong VGDS, you must fix those yourself.
If you open the affected .INI, look for the gate with the missing VGDS, and change this line:
parkingsystem = xx ( this will be number from 1 to 20 or so )
and set it as parkingsystem = 1, so it will revert to the default Marshaller there. Repeat this procedure, restarting Couatl every time, until you don't have any more errors, so now your file will be clean, and you can use the editor to put back VGDS, and now the editor won't let you choose a missing one anymore.