📍 Description (REQUIRED)

Cargo system filter error sometimes, when players use filter for items.

📑 Steps to reproduce the Issue (REQUIRED)

1. Build cargo system.
2. Use the filter option for items.

💡 Expected behavior (REQUIRED)

Cargo system item filter works perfectly without errors.

📜 Server Log

Error:
https://pastebin.com/xBNuint6

📂 /error-reports/ Folder

No error report.

🧭 Environment (REQUIRED)

• Server Software (Spigot/Paper): Paper
• Minecraft Version: 1.16.3
• Slimefun Version: vDEV - 699 (git cdff86f)
• CS-CoreLib Version: vDEV - 91 (git e42a05d1)

Thanks!