Error HTTP 422 when unregistering an user from nLogin

[sg0luc]

Howdy!

When unregistering an account via nLogin plugin, the following error appears on my Console:

> nlogin unregister TesteAzLink
[08:50:51 INFO]: ✔ Você desregistrou o jogador TesteAzLink com sucesso.
[08:50:51 INFO]:
[08:50:51 INFO]: ⚑ This operation took 7.21ms.
[08:50:51 ERROR]: [AzLink] Unable to update password for TesteAzLink
java.util.concurrent.CompletionException: java.io.IOException: Unexpected HTTP error 422
        at AzLink-1.3.12.jar//com.azuriom.azlink.common.http.client.HttpClient.lambda$request$0(HttpClient.java:88) ~[?:?]
        at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
        at AzLink-1.3.12.jar//com.azuriom.azlink.bukkit.integrations.FoliaSchedulerAdapter.lambda$create$2(FoliaSchedulerAdapter.java:26) ~[?:?]
        at io.papermc.paper.threadedregions.scheduler.FoliaAsyncScheduler$AsyncScheduledTask.run(FoliaAsyncScheduler.java:216) ~[paper-1.21.11.jar:?]
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) ~[?:?]
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) ~[?:?]
        at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
Caused by: java.io.IOException: Unexpected HTTP error 422
        at AzLink-1.3.12.jar//com.azuriom.azlink.common.http.client.HttpClient.rawRequest(HttpClient.java:111) ~[?:?]
        at AzLink-1.3.12.jar//com.azuriom.azlink.common.http.client.HttpClient.lambda$request$0(HttpClient.java:86) ~[?:?]
        ... 6 more

Additional info: The /unregister command works properly on nLogin and the account was successfully unregistered, but it's not unregistering on the website.