Game Crashes when player quit server with Telescope contains Research Paper

[NPBeta]

---Issue Report---

(PLEASE DONT DELETE THIS TEMPLATE, YOUR ISSUE WILL BE IGNORED AND CLOSED IF YOU DO.)

Have you checked Closed Issues (if applicable & PLEASE CHECK BEFORE POSTING): Yes

Description of Issue

If a player quit the game with a Telescope belongs to the player contains Research Paper(s), the game server will crash.

Steps to Reproduce Issue

1. Start server with a brand new world
2. Join the server
3. Place a Telescope
4. Unlock all planets by using command (This step is just to ensure the Research Paper put into the Telescope won't be consumed)
5. Add a battery (I used GC's Infinity Battery) and a Research Paper into the Telescope
6. Quit the server
7. Server crashes

Crash log/Log (if applicable): https://paste.ubuntu.com/p/Bg2rQX93cM/

How do i locate a crash log see https://docs.mjrlegends.com/General%20Minecraft/crash-log/

Screenshots (if applicable):

Version of Mod using (PLEASE DONT USE 'Latest' OR 'Newest'): 1.12.2-0.4.6

Where did this bug happen: Server

Additional Information

Seems fine if the Telescope doesn't contains a research paper.

[MJRLegends]

Thanks i see issue, will try get a update out in the next few days to fix