So I just moved this 1.12.2 modded Minecraft server I've been working on for 5 years, from Windows to Linux Mint (Cinnamon). I've got Minecraft working, I've got Technic working, I was able to mod on both platforms, however the server is refusing to obey. It has asked me if I wanna download OpenJDK 8 which I consented to, since it needed that, I also have Java 8 on my system.
Well here's the screen I get just before it shuts down with no crash report, and no logs. So far I've allowed the port 25570 (my server's port) to pass through the Firewall? I believe? Using: "sudo ufw allow 25570" but I am pretty much out of ideas at this point. I can't wrap my head around this issue.
I've worked with Ubuntu before, and this server used to be on Ubuntu first, before it was ever on Windows, I used to use this reboot.sh file and I completely forget how to set it up.. but that's another problem, I just wanna get this server started now, my team and I have a bit of a deadline to meet. 
If anybody is willing to lend a helping hand, that'd be great.