Follow this template except for feature requests. Use pastebin when providing /protocol dump and any relevant errors.

Make sure you've done the following:

• You're using the latest build for your server version
• This isn't an issue caused by another plugin
• You've checked for duplicate issues
• You didn't use /reload

Debug paste link: https://pastebin.com/hTGQcRWb

Description and relevant errors: This error happens randomly, that's all the info I got =/

Steps to reproduce the behavior for me:

1. Install HoloDropsX and any plugin listens on ENTITY_METADATA.
2. Drop a item.
3. The item may won't be displayed for players, and there's a stacktrace in console.

And it's in 1.17.1 server.