Bug Report

Type /ver NametagEdit and post the output.
NametagEdit version 4.4.10

What version of Bukkit/Spigot/PaperSpigot are you using? Type /ver
This server is running Paper version git-Paper-638 (MC: 1.16.5) (Implementing API version 1.16.5-R0.1-SNAPSHOT)
You are 4 version(s) behind
Previous version: git-Paper-362 (MC: 1.16.4)

What plugins are you using? Type /plugins
Plugins (42): AdvancedGUI*, ChestCommands*, Citizens, CMI, CMILib, CommandNPC*, Converter*, CoreProtect, CrazyCrates, CustomJoinItems*, DeluxeMenus, DiscordSRV, DKCoins*, EasyBackup, eZProtector, FastAsyncWorldEdit (WorldEdit), HeadDatabase*, HopeCommander-Spigot*, ImageOnMap, JukeBox, LiteJoin*, LuckPerms, McNative*, NametagEdit*, NoCheatPlus, NoteBlockAPI, PlaceholderAPI, ProtocolLib, Reqn*, Skript, skript-placeholders*, SkriptJSON*, skUtilities*, TitleManager, TpLogin*, Vault, VentureChat, ViaBackwards, ViaRewind, ViaVersion, WorldBorder, WorldGuard

Please explain your issue. How do you trigger it?
When you start the server or when you write the command /nte reload the following comes out:
[19:03:33 WARN]: [NametagEdit] Plugin NametagEdit v4.4.10 generated an exception while executing task 153391 java.lang.RuntimeException: java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at com.zaxxer.hikari.util.UtilityElf.createInstance(UtilityElf.java:102) ~[?:?] at com.zaxxer.hikari.pool.PoolBase.initializeDataSource(PoolBase.java:316) ~[?:?] at com.zaxxer.hikari.pool.PoolBase.<init>(PoolBase.java:109) ~[?:?] at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:108) ~[?:?] at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[?:?] at com.nametagedit.plugin.storage.database.tasks.DataDownloader.run(DataDownloader.java:40) ~[?:?] at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:100) ~[patched_1.16.5.jar:git-Paper-638] at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:54) ~[patched_1.16.5.jar:git-Paper-638] at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[patched_1.16.5.jar:git-Paper-638] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) ~[?:?] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) ~[?:?] at java.lang.Thread.run(Unknown Source) [?:?] Caused by: java.lang.ClassNotFoundException: com.mysql.jdbc.jdbc2.optional.MysqlDataSource at java.net.URLClassLoader.findClass(Unknown Source) ~[?:?] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:182) ~[patched_1.16.5.jar:git-Paper-638] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:111) ~[patched_1.16.5.jar:git-Paper-638] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?] at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:?] at com.zaxxer.hikari.util.UtilityElf.createInstance(UtilityElf.java:89) ~[?:?] ... 11 more

Are there any errors in the console? Please use: https://pastebin.com
https://pastebin.com/pNQvfmdA