Why i can't create my own minecraft server?

I can play on my server yesterday, but now when i try to click on minecraft_server.1.7.10 it just force close. When i try to edit something, I notice that when i change the "server-ip" to my Hamachi IPv4 address on the "server.properties" minecraft_server.1.7.10 always close.

You have to download a software

Look on the minecraft website you need to download a special softwear

Plus, you gotta pay for it.

As if mojang hasn't already made enough money (almost 1 billion…)