This is the all the Error's and Warns my console gives when I start the server. Also I'm using PK1.8.4 on MC1.12.2
[Server] ERROR Ambiguous plugin name `EssentialsSpawn' for files `plugins/EssentialsXSpawn-2.17.1.0.jar' and `plugins/EssentialsXSpawn-2.17.1.15.jar' in `plugins'
[Server] ERROR Ambiguous plugin name `EssentialsProtect' for files `plugins/EssentialsXProtect-2.17.1.0.jar' and `plugins/EssentialsXProtect-2.17.1.15.jar' in `plugins'
[Server] ERROR Ambiguous plugin name `Essentials' for files `plugins/EssentialsX-2.17.1.0.jar' and `plugins/EssentialsX-2.17.1.15.jar' in `plugins'
[Server] ERROR Ambiguous plugin name `EssentialsGeoIP' for files `plugins/EssentialsXGeoIP-2.17.1.15.jar' and `plugins/EssentialsXGeoIP-2.17.1.0.jar' in `plugins'
[Server] ERROR Ambiguous plugin name `EssentialsXMPP' for files `plugins/EssentialsXXMPP-2.17.1.15.jar' and `plugins/EssentialsXXMPP-2.17.1.0.jar' in `plugins'
[Server] INFO Set PluginClassLoader as parallel capable
[Server] ERROR Could not load 'plugins/Factions.jar' in folder 'plugins'
[Server] WARN Version mismatch! Please update EssentialsGeoIP to the same version.
[Server] WARN Version mismatch! Please update EssentialsXMPP to the same version.
[Server] WARN Version mismatch! Please update all Essentials jars to the same version.
[Server] WARN Unable to load JDK7 types (annotations, java.nio.file.Path): no Java7 support added
[Server] WARN :1:1: Premature end of file.
[Server] WARN org.xml.sax.SAXParseException; lineNumber: 1; columnNumber: 1; Premature end of file.
[Server] WARN at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:257)
Server] WARN at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:339)
[Server] WARN at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:121)
[Server] WARN at com.projectkorra.projectkorra.util.Updater.<init>(Updater.java:60)
[Server] WARN at com.projectkorra.projectkorra.ProjectKorra.onEnable(ProjectKorra.java:59)
[Server] WARN at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
[Server] WARN at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337)
[Server] WARN at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:402)
[Server] WARN at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:384)
[Server] WARN at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:333)
[Server] WARN at net.minecraft.server.v1_12_R1.MinecraftServer.t(MinecraftServer.java:422)
[Server] WARN at net.minecraft.server.v1_12_R1.MinecraftServer.l(MinecraftServer.java:383)
[Server] WARN at net.minecraft.server.v1_12_R1.MinecraftServer.a(MinecraftServer.java:338)
[Server] WARN at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:272)
[Server] WARN at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:545)
[Server] WARN at java.lang.Thread.run(Thread.java:748)
[Server] WARN Version mismatch! Please update all Essentials jars to the same version.
[Server] WARN config broken for xmpp