https://pastebin.com/imfXiWw3
Crash ^
I crashed when breaking a sign. I was playing on a server. I placed a sign and it didn't load the editor, so I broke it and crashed. It looks like it tries to get the position of the sign when there is only air there.
The client, launcher, the server you are playing with is modified.
Issues with mods or plugins need to be taken up with their authors. If you can reproduce this issue in a vanilla environment, please let us know and we will reopen this ticket.