Information

Environment information
Plugin + server version info:plugin-2.3.22 server-1.7.10

<!-- Replace this with the output of "/backpack version". You can run the command in your console or as op ingame. -->

Online mode: yes

BungeeCord: yes

Server/crash log

<!-- Replace this with your crash log / link to your log file -->

Plugin config (optional)

<!-- Replace this with details about your config -->

Details

Description

use cmd：/backpack open 小明
When the player's name is in Chinese,
It will open an empty backpack.
It's like the player doesn't exist.
Whether the player being asked is online or not,
It keeps opening up an empty warehouse.
(I'm using mysql)
Steps to reproduce

/backpack open 小明
Expected behavior

Repair it
Other information (e.g. detailed explanation, related issues, suggestions how to fix, links for us to have context, screenshots, etc.)

Which server software (Bukkit/Spigot/Uranium/...)?
Online or offline mode?

Uranium
online

Please try if this build solves the issues for you, at least for online players.
Not sure if I can do something to make offline players work, since back in the 1.7 days user names have been more restrictive and the old versions aren't handling none ascii names correctly (and even in the ascii characters are some limitations of what you were able to use).

[14:36:23] [Server thread/ERROR]: Could not load 'plugins/Minepacks-2.4.4-SNAPSHOT-Release.jar' in folder 'plugins' org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: at/pcgamingfreaks/Minepacks/Bukkit/Minepacks at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:151) ~[JavaPluginLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:334) ~[SimplePluginManager.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:256) [SimplePluginManager.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugins(CraftServer.java:323) [CraftServer.class:1.7.10-R0.1-SNAPSHOT] at net.minecraft.world.storage.SaveHandler.initBukkitData(SaveHandler.java:460) [ayq.class:?] at net.minecraft.world.storage.SaveHandler.func_75757_d(SaveHandler.java:136) [ayq.class:?] at net.minecraft.world.World.<init>(World.java:348) [ahb.class:?] at net.minecraft.world.WorldServer.<init>(WorldServer.java:163) [mt.class:?] at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:363) [MinecraftServer.class:?] at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:356) [lt.class:?] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:627) [MinecraftServer.class:?] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_281] Caused by: java.lang.NoClassDefFoundError: at/pcgamingfreaks/Minepacks/Bukkit/Minepacks at java.lang.Class.forName0(Native Method) ~[?:1.8.0_281] at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_281] at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:321) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:147) ~[JavaPluginLoader.class:1.7.10-R0.1-SNAPSHOT] ... 11 more Caused by: java.lang.ClassNotFoundException: Failed to remap class at.pcgamingfreaks.Minepacks.Bukkit.Minepacks at org.bukkit.plugin.java.PluginClassLoader.remappedFindClass(PluginClassLoader.java:683) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:604) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:343) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_281] at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_281] at java.lang.Class.forName0(Native Method) ~[?:1.8.0_281] at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_281] at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:321) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:147) ~[JavaPluginLoader.class:1.7.10-R0.1-SNAPSHOT] ... 11 more Caused by: java.lang.NoClassDefFoundError: at/pcgamingfreaks/Plugin/IPlugin at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_281] at java.lang.ClassLoader.defineClass(ClassLoader.java:756) ~[?:1.8.0_281] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_281] at org.bukkit.plugin.java.PluginClassLoader.remappedFindClass(PluginClassLoader.java:671) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:604) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:343) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_281] at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_281] at java.lang.Class.forName0(Native Method) ~[?:1.8.0_281] at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_281] at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:321) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:147) ~[JavaPluginLoader.class:1.7.10-R0.1-SNAPSHOT] ... 11 more Caused by: java.lang.ClassNotFoundException: at.pcgamingfreaks.Plugin.IPlugin at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:617) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:343) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_281] at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_281] at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.8.0_281] at java.lang.ClassLoader.defineClass(ClassLoader.java:756) ~[?:1.8.0_281] at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.8.0_281] at org.bukkit.plugin.java.PluginClassLoader.remappedFindClass(PluginClassLoader.java:671) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:604) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:343) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at java.lang.ClassLoader.loadClass(ClassLoader.java:418) ~[?:1.8.0_281] at java.lang.ClassLoader.loadClass(ClassLoader.java:351) ~[?:1.8.0_281] at java.lang.Class.forName0(Native Method) ~[?:1.8.0_281] at java.lang.Class.forName(Class.java:348) ~[?:1.8.0_281] at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:321) ~[PluginClassLoader.class:1.7.10-R0.1-SNAPSHOT] at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:147) ~[JavaPluginLoader.class:1.7.10-R0.1-SNAPSHOT] ... 11 more
error..

I think this should fix it.

What to do now... XD

Not sure why it's not working for you.

Please try to also install this, if it then still fails please attach the full server startup log file.