Tab Completion Error

[Dart2112]

Error reported via Spigot DMs
Tracking here

When pressing tab with "/afkplus t" in the command box

[13:26:58 INFO]: [org.jline] Error while finding completion candidates
java.lang.ClassCastException: class com.destroystokyo.paper.console.TerminalConsoleCommandSender cannot be cast to class org.bukkit.entity.Player (com.destroystokyo.paper.console.TerminalConsoleCommandSender and org.bukkit.entity.Player are in unnamed module of loader java.net.URLClassLoader @504bae78)
        at AFKPlus.jar/net.lapismc.afkplus.commands.tabcomplete.OtherAFKPlusOptions.getOptions(OtherAFKPlusOptions.java:33) ~[AFKPlus.jar:?]
        at AFKPlus.jar/net.lapismc.afkplus.util.core.commands.tabcomplete.LapisCoreTabCompleter.recursiveSearch(LapisCoreTabCompleter.java:97) ~[AFKPlus.jar:?]
        at AFKPlus.jar/net.lapismc.afkplus.util.core.commands.tabcomplete.LapisCoreTabCompleter.onTabComplete(LapisCoreTabCompleter.java:84) ~[AFKPlus.jar:?]
        at AFKPlus.jar/net.lapismc.afkplus.util.core.commands.LapisCoreCommand.tabComplete(LapisCoreCommand.java:220) ~[AFKPlus.jar:?]
        at org.bukkit.command.Command.tabComplete(Command.java:101) ~[paper-api-1.21.4-R0.1-SNAPSHOT.jar:?]
        at io.papermc.paper.command.brigadier.bukkit.BukkitCommandNode$BukkitBrigSuggestionProvider.getSuggestions(BukkitCommandNode.java:108) ~[paper-1.21.4.jar:1.21.4-136-e0711af]
        at com.mojang.brigadier.tree.ArgumentCommandNode.listSuggestions(ArgumentCommandNode.java:71) ~[brigadier-1.3.10.jar:1.21.4-136-e0711af]
        at com.mojang.brigadier.CommandDispatcher.getCompletionSuggestions(CommandDispatcher.java:550) ~[paper-1.21.4.jar:?]
        at io.papermc.paper.console.BrigadierCommandCompleter.complete(BrigadierCommandCompleter.java:48) ~[paper-1.21.4.jar:1.21.4-136-e0711af]
        at org.bukkit.craftbukkit.command.ConsoleCommandCompleter.addCompletions(ConsoleCommandCompleter.java:150) ~[paper-1.21.4.jar:1.21.4-136-e0711af]
        at org.bukkit.craftbukkit.command.ConsoleCommandCompleter.complete(ConsoleCommandCompleter.java:119) ~[paper-1.21.4.jar:1.21.4-136-e0711af]
        at org.jline.reader.impl.LineReaderImpl.doComplete(LineReaderImpl.java:4381) ~[jline-reader-3.20.0.jar:?]
        at org.jline.reader.impl.LineReaderImpl.doComplete(LineReaderImpl.java:4347) ~[jline-reader-3.20.0.jar:?]
        at org.jline.reader.impl.LineReaderImpl.expandOrComplete(LineReaderImpl.java:4286) ~[jline-reader-3.20.0.jar:?]
        at org.jline.reader.impl.LineReaderImpl$1.apply(LineReaderImpl.java:3778) ~[jline-reader-3.20.0.jar:?]
        at org.jline.reader.impl.LineReaderImpl.readLine(LineReaderImpl.java:679) ~[jline-reader-3.20.0.jar:?]
        at org.jline.reader.impl.LineReaderImpl.readLine(LineReaderImpl.java:468) ~[jline-reader-3.20.0.jar:?]
        at net.minecrell.terminalconsole.SimpleTerminalConsole.readCommands(SimpleTerminalConsole.java:158) ~[terminalconsoleappender-1.3.0.jar:?]
        at net.minecrell.terminalconsole.SimpleTerminalConsole.start(SimpleTerminalConsole.java:141) ~[terminalconsoleappender-1.3.0.jar:?]
        at net.minecraft.server.dedicated.DedicatedServer$1.run(DedicatedServer.java:109) ~[paper-1.21.4.jar:1.21.4-136-e0711af]

[Dart2112]

This is an issue with tab completion on the console.
I wasn't checking if the sender was a player before I was trying to cast the sender to a player.
A simple sender instanceof player check will resolve this issue.