Hi cm
Sounds like you have a Windows OS problem.
SH3 does not like Windows 10 so you need to run in compatibility mode for Windows 7.
You also need to run your SH3.exe, SH3Commander and JSGME.exe in administrator modes.
Look at my tutorials and make sure that you have followed the installing and the advice that I am giving.
At the moment you are not showing me any reason why you cannot play LSH3-2015 successfully with a little help.
It would be useful to see you computer specs.
Peter