Caused by: java.lang.ClassNotFoundException: it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[?:1.8.0_252]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:167) ~[spigot-1.16.2.jar:git-Spigot-379750e-fe4efd1]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:96) ~[spigot-1.16.2.jar:git-Spigot-379750e-fe4efd1]
at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_252]
at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_252]
at java.lang.Class.forName0(Native Method) ~[?:1.8.0_252]
at java.lang.Class.forName(Class.java:264) ~[?:1.8.0_252]
at org.inventivetalent.glow.GlowAPI.sendGlowPacket(GlowAPI.java:290) ~[?:?]
at org.inventivetalent.glow.GlowAPI.setGlowing(GlowAPI.java:116) ~[?:?]
at org.inventivetalent.glow.GlowAPI.setGlowing(GlowAPI.java:133) ~[?:?]
at dev.lone.serverbooster.HoloEvents.DropEventListener.glowItem(DropEventListener.java:458) ~[?:?]
at dev.lone.serverbooster.HoloEvents.DropEventListener.playerDropItem(DropEventListener.java:111) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_252]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_252]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_252]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_252]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:315) ~[spigot-1.16.2.jar:git-Spigot-379750e-fe4efd1]
... 21 more