Hello Shahid,
It can be challenging to support software older versions of the software especially when it is much older. Any project files I create you will not be able to open. However, I have some suggestions that might help.
1) When I ran the simulation I did not get any errors but it would not stop and it seemed like the Buffer Selector component was hanging. I deleted the buffer selector.
2) I also did not know why there were two splitters cascaded so I removed one to reduce the complexity of the simulation.
3) By increasing the signal iterations and also an initial delay in the layout parameters I got the Eye diagram attached.
When you run into problems like this you really just need to cut parts of the simulation out until you can find the errors by simplifying the project. Also following the signal as it propagates through the system with time domain visualizers is essential. If you add the Splitter back I think all you would need to do is increase the number of signal iterations.
Regards