[12:23:09] [Server thread/INFO]: Starting minecraft server version 1.11.2
[12:23:09] [Server thread/INFO]: Loading properties
[12:23:09] [Server thread/INFO]: Default game type: SURVIVAL
[12:23:09] [Server thread/INFO]: This server is running CraftBukkit version git-Spigot-a3f6ea5-a2af8f0 (MC: 1.11.2) (Implementing API version 1.11.2-R0.1-SNAPSHOT)
[12:23:09] [Server thread/INFO]: Server Ping Player Sample Count: 12
[12:23:09] [Server thread/INFO]: Using 4 threads for Netty based IO
[12:23:09] [Server thread/INFO]: Debug logging is disabled
[12:23:09] [Server thread/INFO]: Generating keypair
[12:23:09] [Server thread/INFO]: Starting Minecraft server on 192.99.19.190:29168
[12:23:09] [Server thread/INFO]: Using epoll channel type
[12:23:10] [Server thread/ERROR]: Could not load 'plugins/NetherPortalFix_1.11-4.3.1.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml
	at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:152) ~[spigot-1.11.2_4_28.jar:git-Spigot-a3f6ea5-a2af8f0]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:133) [spigot-1.11.2_4_28.jar:git-Spigot-a3f6ea5-a2af8f0]
	at org.bukkit.craftbukkit.v1_11_R1.CraftServer.loadPlugins(CraftServer.java:301) [spigot-1.11.2_4_28.jar:git-Spigot-a3f6ea5-a2af8f0]
	at net.minecraft.server.v1_11_R1.DedicatedServer.init(DedicatedServer.java:204) [spigot-1.11.2_4_28.jar:git-Spigot-a3f6ea5-a2af8f0]
	at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:544) [spigot-1.11.2_4_28.jar:git-Spigot-a3f6ea5-a2af8f0]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_112]
Caused by: java.io.FileNotFoundException: Jar does not contain plugin.yml
	... 6 more