1. Crashes and bugs may be due to incorrect installation of the game itself or incorrect launcher settings when launching. Problems may also occur if you have Windows 10 installed on your computer. Configuring Windows 10 for older games:
1) https://www.youtube.com/watch?v=dpVjBtNn08Q
2) https://www.youtube.com/watch?v=O8Va4aJNWmI
3) https://www.youtube.com/watch?v=y-TVAUvJ0BY
4) https://www.youtube.com/watch?v=_KOruds2BRE
5) https://www.youtube.com/watch?v=aRo9uz51FqA
Try deleting everything and then reinstalling, following the instructions.