DK64.lua does not work with the kiosk version on BizHawk 2.11.1

[Catstorm]

Loading the newest version of ScriptHawk for an unmodified DK64 kiosk demo rom in 2.11.1 shows the ScriptHawk menu for a split second, then closes and returns error:
NLua.Exceptions.LuaScriptException: (...)\BizHawk-2.11.1-win-x64\games\dk64.lua:6323: attempt to concatenate a nil value

ScriptHawk/games/dk64.lua

Line 6323 in 31b51aa

return caption..value.."/"..max.." or "..round(value / max * 100, 2).."%";

Attempting to load the script again in the same session gives a different error:
NLua.Exceptions.LuaScriptException: [string "main"]:881: attempt to index a number value (local 'v')

[theballaam96]

DK64 has various issues with 2.x. TASers have always used versions between 1.11.8
2 and 1.13.2. I'd advise doing the same