internalOpen(...) must not be null

[athinaslime]

Is there an existing issue for this?

• I have searched the existing issues

🐛 Describe the bug

I cannot open the view at all.

Here is the stack trace.

java.lang.NullPointerException: internalOpen(...) must not be null at me.devnatan.inventoryframework.ViewFrame.open(ViewFrame.kt:85) at me.devnatan.inventoryframework.ViewFrame.open(ViewFrame.kt:47) at me.devnatan.inventoryframework.ViewFrame.open(ViewFrame.kt:33)

✔️ Expected behavior

Being able to open the view.

👣 Steps to Reproduce

In a normal Minestom environment, join the server and open the view, then close it and log off the server. Once you join back the server and try to open the view again this error should occur, in my personal experience this has happened to me every single time without fail.

💻 Platform

• Bukkit
• Sponge
• Other

⭐ Server Version

1.21.5 / Latest Minestom release (2025.07.04-1.21.5)

📚 Library Version

3.4.1

✍️ Additional context

No response