Mod Version: 1.12.2-1.10.10
Forge Version: 14.23.5.2807

https://pastebin.com/ZgDD2VKE
What happens:
Statue builds fine, but crashes upon right-clicking it with anything. Not sure if this is fixable on your end or they have to change something. Will post to both.

Willing to bet they're using entityplayer instead of entityplayerMP like they should be, by forge docs. It's what's been causing this that we've seen recently.

"EntityStatuePlayer" is neither a clientside nor a serverside player. Also doesn't hold true to conventions for Fakeplayers. This isn't my fault, this is an implementation error from their side.

Thanks for taking a look. I've posted in their github as well. Close at your discretion.