From e84a184946021f24219e7fa9366a21ff387cd39c Mon Sep 17 00:00:00 2001
From: Vanessa Dannenberg <vanessa.e.dannenberg@gmail.com>
Date: Thu, 19 Sep 2019 19:24:42 -0400
Subject: [PATCH] only try to process a light message if it's a string

---
 homedecor_lighting/init.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/homedecor_lighting/init.lua b/homedecor_lighting/init.lua
index 157ddab..7c7fedb 100644
--- a/homedecor_lighting/init.lua
+++ b/homedecor_lighting/init.lua
@@ -103,7 +103,7 @@ if minetest.get_modpath("digilines") then
 		local setchan = meta:get_string("channel")
 		if setchan ~= channel then return end
 
-		if msg and msg ~= "" then
+		if msg and msg ~= "" and type(msg) == "string" then
 			local n = tonumber(msg)
 			local suff = word_to_bright[msg] or "invalid"