Me and my friends use a custom modpack of around 65 mods. The mods are mainly very minimal.

What Happened
Attempted to place carpet on both the top and bottom of stairs. Resulted in a crash.

Here is the modlist:
modlist.txt

Crash report:
crash-2020-03-26_03.38.11-server.txt

Forge Version: forge-1.15.2-31.1.27
Mod Version: v1.3

Notes:
We are playing on a modded server as well encase that has any weight.

Fixed, just had to re-compile the mod to the latest version of Forge and change a class name. Thanks for the report.

Fixed, just had to re-compile the mod to the latest version of Forge and change a class name. Thanks for the report.

Cheers thanks