All, This is a message to let you know that Ubuntu has recently pushed what appears to be a bad kernel update to Ubuntu 18.04 users. If you are using Ubuntu 18.04, please note that the following kernel appears to have issues handling console input: 4.15.0-44-generic #47-Ubuntu SMP Mon Jan 14 11:26:59 UTC 2019. Older (e.g. 4.15.0-43-generic #46-Ubuntu SMP Thu Dec 6 14:45:28 UTC 2018) kernels are not affected. If you are using this kernel and have a message along the lines of "java.io.IOException: Resource temporarily unavailable", this is the reason. We are still investigating the exact cause / reason for this. If you are affected by this issue there are a number of workarounds available (you only need to use one). Spigot / BungeeCord: Add -Djline.terminal=jline.UnsupportedTerminal to your Java arguments Spigot: Add --nojline to your Spigot arguments Reboot your server and select 4.15.0-43, or any other non broken Linux kernel. Install a non broken kernel: apt install linux-image-4.15.0-43-generic, remove the broken one: apt remove linux-image-4.15.0-44-generic, and reboot. Please direct any queries to the 1.13.2 discussion thread, or general forums: https://www.spigotmc.org/threads/344189/ EDIT: Please see the below post for updates.