Type of bug

Other unexpected behaviour

/ess dump all output

https://essentialsx.net/dump.html?id=280108c2388d453988871bfe31516b33

Error log (if applicable)

No response

Bug description

When use /hat with a stack, 2/64 items on head, players get disconnected and then crash on every login untill i kill them and drop the hats from head slot

Steps to reproduce

1. grab 2 items of same
2. do /hat command
3. get 2 or more items of the same type on your head
4. eventually you'll disconnect and cant login again until you get your inv clearead
5. doesnt affect OP's

Expected behaviour

Nothing or Just 1x item on head

Actual behaviour

stackable hat item and server disconnect

Unable to reproduce this on the latest version of Essentials. If you're still experiencing this issue please open a new issue and try with only Essentials installed, and provide the error and/or crash message as well.