[BUG] Sender is null

[bobhenl]

What is the bug?

Hello, I got the error that sender is null, unfortunately, I don't know why.

Expected Behaviour

No error

How to Reproduce

It looks like the player used teamchat?

Error message

11:03:10] [Async Chat Thread - #94/INFO]: [BetterTeams]§b[Team]§f **Indev§r§f: uhh [11:03:12] [Server thread/INFO]: [ChatControlRed] [standard2] NukexKiwiz: . . . [11:03:13] [Craft Scheduler Thread - 2305 - BetterTeams/WARN]: [BetterTeams] Plugin BetterTeams v4.10.0 generated an exception while executing task 41344706 java.lang.NullPointerException: Cannot invoke "org.bukkit.command.CommandSender.sendMessage(String)" because "sender" is null at BetterTeams-4.10.0.jar/com.booksaw.betterTeams.message.MessageManager.sendMessage(MessageManager.java:191) ~[BetterTeams-4.10.0.jar:?] at BetterTeams-4.10.0.jar/com.booksaw.betterTeams.Team$1.run(Team.java:804) ~[BetterTeams-4.10.0.jar:?] at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:86) ~[purpur-1.21.jar:1.21-2284-4e55e26] at org.bukkit.craftbukkit.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:57) ~[purpur-1.21.jar:1.21-2284-4e55e26] at com.destroystokyo.paper.ServerSchedulerReportingWrapper.run(ServerSchedulerReportingWrapper.java:22) ~[purpur-1.21.jar:?] at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?] at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?] at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]

Output of /teama version

[22:28:13 INFO]: Storage Method: com.booksaw.betterTeams.team.storage.storageManager.SQLStorageManager [22:28:13 INFO]: Minecraft Version: 1.21-2284-4e55e26 (MC: 1.21) [22:28:13 INFO]: Language Selected: messages [22:28:13 INFO]: Online mode: false [22:28:13 INFO]: Player count: 44 [22:28:13 INFO]: Current plugin version: 4.10.0

Additional Information

No response