Welcome to BVEStation.
Once again, make sure you have the dependencies, as MOST users do not experience this issue. Make sure the NYCT Object pack is installed so that the "NYCT Object" folder within the "OpenBVE" folder is in the main object directory.
I just downloaded the NYCT Objects pack, and installed it, as I am having the exact same problem, but it didn't work.
Please tell me what folder was put into your object directory.
In the object directory is a folder named 'NYCT Objects', in addition to the 'Hempstead' object folder.
Confirm that this is the same NYCT Objects folder that is in the "openbve" folder, not the main download folder. The NYCT Common folder must also be there.