Date: 2019-11-26 08:58:56
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\BadBoy\Generate.lua line 5:
attempt to index a nil value
Debug:
BadBoy\Generate.lua:5: gnt()
BadBoy\BadBoy.lua:5: in main chunk
Locals:
u = 279
(*temporary) = defined =[C]:-1
(*temporary) = defined =[C]:-1
(*temporary) = defined =[C]:-1
(*temporary) = nil
(*temporary) = 279
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index a nil value"
t =

AddOns:
Swatter, v8.2.6511 (SwimmingSeadragon)
WowheadLooter, v11302
Atlas, vv1.45.01.11302
AtlasClassicWoW, vv1.45.00.11302.05
AucAdvanced, v8.2.6471 (SwimmingSeadragon)
AucFilterBasic, v8.2.6497 (SwimmingSeadragon)
AucStatHistogram, v8.2.6499 (SwimmingSeadragon)
AucStatiLevel, v8.2.6503 (SwimmingSeadragon)
AucStatPurchased, v8.2.6500 (SwimmingSeadragon)
AucStatSimple, v8.2.6501 (SwimmingSeadragon)
AucStatStdDev, v8.2.6502 (SwimmingSeadragon)
AucUtilFixAH, v8.2.6504 (SwimmingSeadragon)
BadBoy, vv8.2.5
Stubby, v8.2.6510 (SwimmingSeadragon)
BlizRuntimeLib_enUS v1.13.2.11302
(ck=261)

Similar Error I believe

Date: 2020-10-11 11:31:48
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\BadBoy\Generate.lua line 5:
attempt to index a nil value
Debug:
BadBoy\Generate.lua:5: gnt()
BadBoy\BadBoy.lua:5: in main chunk
Locals:
u = 279
(*temporary) = defined =[C]:-1
(*temporary) = defined =[C]:-1
(*temporary) = defined =[C]:-1
(*temporary) = nil
(*temporary) = 279
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to index a nil value"
t = {
clickToReport = "Click to report, Alt-Click to dismiss."
noAnimate = "Disable button pulse animation"
is = defined @interface\AddOns\BadBoy\Generate.lua:34
frequentButton = "Show the button more frequently"
spamTooltip = "Show spam in button tooltip"
spamBlocked = "BadBoy: Spam blocked"
gnt = defined @interface\AddOns\BadBoy\Generate.lua:4
frequentButtonTip = "To reduce player annoyance the report button will not always show.
Enable this to always show the button asking to report and show it faster."
}

AddOns:
Swatter, v8.2.6511 (SwimmingSeadragon)
WowheadLooter, v11304
Altoholic, vClassic-v1.13.5-047
Atlas, vv1.47.04
AtlasClassicWoW, vv1.47.02.11304.00
AtlasLootClassic, vv1.5.6
AtlasLootClassicData, vv1.5.6
AtlasLootClassicDungeonsAndRaids, vv1.5.6
AucAdvanced, v8.2.6471 (SwimmingSeadragon)
AucFilterBasic, v8.2.6497 (SwimmingSeadragon)
AucStatHistogram, v8.2.6499 (SwimmingSeadragon)
AucStatiLevel, v8.2.6503 (SwimmingSeadragon)
AucStatPurchased, v8.2.6500 (SwimmingSeadragon)
AucStatSimple, v8.2.6501 (SwimmingSeadragon)
AucStatStdDev, v8.2.6502 (SwimmingSeadragon)
AucUtilFixAH, v8.2.6504 (SwimmingSeadragon)
AutoDismount, v1.0.3
BadBoy, vv8.2.5
DataStore, vv1.13.013
DataStoreCharacters, vv1.13-013
Stubby, v8.2.6510 (SwimmingSeadragon)
BlizRuntimeLib_enUS v1.13.5.11305
(ck=336)

You're using the wrong version of BadBoy. Install the one designed for classic wow.