Via a player of mine, they were using the clan chat with “/c leave it to me” to send a message to crew chat.
I also have seen a player trying to teach another player how to leave a crew by meaning to type ./crew leave in chat but he missed the dot.

Can we get some verification someone wishes to leave a group before doing it on a single command?

Thank you.

@RoinujNosde Thanks, Its on the server and I have asked my users to test :)

Thanks, I added 3 new messages. So you must update your old language file if you're using it.

SimpleClans.zip

@FrozenBeard could you test it?

Nope, stopped /crew leave working all together (mines chnaged to crew over clan)

Any errors or messages?

No it doesn't say anything, stops messages being sent in chat until you relog.

Did you add manually the 3 new messages?

Ah nuts no, I must have skimmed your message, I'll do that.

I just thought of an issue tho, if they miss the message then they won't be able to talk, maybe add a timer if they don't reply to cancel it?

I'll do that.

Let me know if it works.

maybe add a timer if they don't reply to cancel it?

How many seconds?

~~I added the new language.yml lines, there was a full reboot and it wiped the language.yml back to what it was: this is my edited version: https://gist.github.com/FrozenBeard/2d159e75b9046ec87509ba7784233584
This is what it reverts it to:
https://gist.github.com/FrozenBeard/4b4f7e5a6f9113da009016a31fd622d4

I also tried copying it over and did a /crew reload which reloads the plugin, but not the languages file.

When I type in chat I get this error:
[11:56:03] [Server thread/WARN]: [SimpleClans] Plugin SimpleClans v2.7.15 generated an exception whilst handling conversation input java.lang.NullPointerException: null at java.text.MessageFormat.applyPattern(MessageFormat.java:436) ~[?:1.8.0_201] at java.text.MessageFormat.<init>(MessageFormat.java:362) ~[?:1.8.0_201] at java.text.MessageFormat.format(MessageFormat.java:840) ~[?:1.8.0_201] at net.sacredlabyrinth.phaed.simpleclans.conversation.ResignPrompt.getPromptText(ResignPrompt.java:59) ~[?:?] at org.bukkit.conversations.Conversation.outputNextPrompt(Conversation.java:284) ~[patched_1.12.2.jar:git-Paper-1617] at org.bukkit.conversations.Conversation.acceptInput(Conversation.java:229) ~[patched_1.12.2.jar:git-Paper-1617] at org.bukkit.craftbukkit.v1_12_R1.conversations.ConversationTracker.acceptConversationInput(ConversationTracker.java:60) ~[patched_1.12.2.jar:git-Paper-1617] at org.bukkit.craftbukkit.v1_12_R1.entity.CraftPlayer.acceptConversationInput(CraftPlayer.java:1325) ~[patched_1.12.2.jar:git-Paper-1617] at net.minecraft.server.v1_12_R1.PlayerConnection$5.evaluate(PlayerConnection.java:1311) ~[patched_1.12.2.jar:git-Paper-1617] at org.bukkit.craftbukkit.v1_12_R1.util.Waitable.run(Waitable.java:24) ~[patched_1.12.2.jar:git-Paper-1617] at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:861) ~[patched_1.12.2.jar:git-Paper-1617] at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:423) ~[patched_1.12.2.jar:git-Paper-1617] at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:774) ~[patched_1.12.2.jar:git-Paper-1617] at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:666) ~[patched_1.12.2.jar:git-Paper-1617] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201]

Maybe because its not able to load the changes to the language.yml?
Looking at my latest.log I see

[11:50:05] [Server thread/INFO]: SimpleClans command failure: null
When people run crew leave.
~~

Edit:
Sorry im very ill atm, I was uploading the wrong language.yml from the test server not the live server dev files, I assume I cannot reload the languages.yml in-game while the servers running? As this is production I will need to wait 24h until next reboot. as /crew reload does not seem to work.

Ahoy!
Ok sorry its been hectic for my IRL recently, I got my language file updated so I can see this working, can you please not make the yes/no case sensitive? And have a error return if they write anything apart from yes/no? Could you do it so if they write anything apart from Yes/yes/y that it just ends up as "no", thats probability the most simplest design choice here, then if they miss the message in chat and start talking then it'll auto be "no".

Will do