Bamboo torches from Bamboo Blocks appear to be causing a crash, with multiple individuals in the Discord channel reporting this bug. It appears to be this issue on the Bamboo Blocks Github.

Actually, this may not be necessary after Supplementaries is updated:

If anyone encounters this issue on multiplayer and needs a fix for it, I was able to find a way to remove the torch through the server console:

• first I downloaded the playerdata of the player who placed the torch
• then I used NBTExplorer to find the players position
• I went to the server console
• I typed in a fill command with the corner positions being made to be relative to the player's position (the first corner i subtracted from the player's position for each coordinate by like 5 and then the second corner i added 5).
• The fill command: /fill [corner1x] [corner1y] [corner1z] [corner2x] [corner2y] [corner2z] minecraft:air replace bamboo_blocks:bamboo_torch (the id of the bamboo torch can be replaced with whatever the actual id is if its a torch variant)

Unfortunately this doesnt really work in singleplayer though as the server console is key here.