Hey, there I understand your problem completely, but as far as information goes you didn't provide me with a lot. The server crash is occurring because your system is using a connection that is already closed. To put it another way, you did something wrong when you were making your server. It'd be helpful if you provided me with the tutorial you followed off GG servers, or what you did. I will also provide you with a tutorial on how to create a server, as something for you to look over and make sure you did everything correctly.
1. Make sure your java version is up to date. (If not Go to java.com, and update your java to the latest version. uninstall older versions. Then restart your computer.)
2. Make sure ftb launcher, and all the mods you want are installed on your computer.
3. Download the ftb server you want.
4. Extract the compressed files into a new folder.
5. Open eula with notepad and make sure its set to TRUE BEFORE you start, or run the server.
6. Click the ftbinstall.
7. Finally click server start .bat.
Quick note: I did find a tutorial on GG servers, that told you to delete your .bat server files. (
https://ggservers.net/billing/knowledgebase/17/Installation-Feed-The-Beast.html)
For now try the steps I provided for you, because you can always go into your server.bat, and change what .jar file you want it to run. All You really need to worry about right now is make sure everything runs, and works. Once we get that down you can go in and mess with things on your server. Hope this helps
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