Game and Plater version
Plater version: v9.0.1.309-retail
Plater version: Plater-v9.0.1.310-Retail-5-g1c12fed-alpha
Game version v9.0.1.36272

Describe the bug

• Was cleaning up a quest in Stormwind City. I still had the quest "To be Prepared" open in the Stormwind Docks. This quest starts the BFA intro which you can skip if you did it on a another character. The quest remains then.

step 1: Talk to recruiter Lee to accept the quest (quest requires 4 steps)
step 2: click 3 items (a,b,c):

a) Armor polished
b) Weapon empowered
c) Last meal eaten
d) Warmed up with a duel is

Step 3: step d) Warmed up with a duel requires You to talk to one of the NPC's to duel them. The moment You click the dialogue option "Let's duel" the error triggers.

ps. Don't kill the npc otherwise you cant reproduce it anymore

• Additional information:

Just in case: OmniCC/TullaCC removed due to earlier bug findings

Tested with latest release version and latest alpha version of plater

Lua Error

2x Plater\Plater-Plater-v9.0.1.310-Retail.lua:5726: bad argument #1 to 'unpack' (table expected, got nil)
[string "=[C]"]: ?
[string "@plater\Plater-Plater-v9.0.1.310-Retail.lua"]:5726: in function SetQuestColorByReaction' [string "@Plater\Plater-Plater-v9.0.1.310-Retail.lua"]:5753: in function ColorOverrider'
[string "@plater\Plater-Plater-v9.0.1.310-Retail.lua"]:5820: in function FindAndSetNameplateColor' [string "@Plater\Plater-Plater-v9.0.1.310-Retail.lua"]:3203: in function func'
[string "@plater\Plater-Plater-v9.0.1.310-Retail.lua"]:3450: in function EventHandler' [string "@Plater\Plater-Plater-v9.0.1.310-Retail.lua"]:3460: in function RunFunctionForEvent'
[string "@plater\Plater-Plater-v9.0.1.310-Retail.lua"]:1376: in function <Plater\Plater.lua:1356>
[string "@SharedXML\C_TimerAugment.lua"]:16: in function <SharedXML\C_TimerAugment.lua:14>

Locals:
(*temporary) = nil
(*temporary) = "table expected, got nil"

Screenshots
Screenshot with different steps
https://postimg.cc/mPBYqBkj

Fixed in latest alpha via 47dbfd2

Thanks for the detailed report!

Confirmed that it's fixed the latest alpha build. Thanks you :)