My group has used Nintrado for years. If the server is crashing it's likely due to user error on the setup. Mods can compound this issue by generally causing the game to crash and likely is not Nintrado.
Make your world in single player first, make sure setting is set to online and exactly how you like it. Load your mod order here as well.
Save it and ftp the files into the server.
Make sure that the world name matches the world name on the general settings page.