When I attempt to adjust the number of buffs to show on the party frame. I get the blow error.

Date: 2020-08-06 05:00:31
ID: 1
Error occured in: Global
Count: 1
Message: ...SpartanUI_PartyFrames\scripts\FrameStyle_Classic.lua line 557:
attempt to index global 'addon' (a nil value)
Debug:
...SpartanUI_PartyFrames\scripts\FrameStyle_Classic.lua:557:
...SpartanUI_PartyFrames\scripts\FrameStyle_Classic.lua:555
[C]: ?
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:51:
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:49
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:843:
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:664
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:895:
...nfig-3.0\AceConfigDialog-3.0\AceConfigDialog-3.0.lua:883
[C]: ?
...assicCastbars_Options\Libs\AceGUI-3.0\AceGUI-3.0.lua:72:
...assicCastbars_Options\Libs\AceGUI-3.0\AceGUI-3.0.lua:70
...assicCastbars_Options\Libs\AceGUI-3.0\AceGUI-3.0.lua:306: Fire()
...der4\libs\AceGUI-3.0\widgets\AceGUIWidget-Slider.lua:69:
...der4\libs\AceGUI-3.0\widgets\AceGUIWidget-Slider.lua:60
Locals:
None
AddOns:
Swatter, v8.2.6377 (SwimmingSeadragon)
AtlasLootClassic, vv1.5.4
AtlasLootClassicData, vv1.5.4
AtlasLootClassicDungeonsAndRaids, vv1.5.4
AucAdvanced, v8.2.6430 (SwimmingSeadragon)
AucFilterBasic, v8.2.6364 (SwimmingSeadragon)
AucScanData, v8.2.6365 (SwimmingSeadragon)
AucStatHistogram, v8.2.6366 (SwimmingSeadragon)
AucStatiLevel, v8.2.6370 (SwimmingSeadragon)
AucStatPurchased, v8.2.6367 (SwimmingSeadragon)
AucStatSimple, v8.2.6399 (SwimmingSeadragon)
AucStatStdDev, v8.2.6369 (SwimmingSeadragon)
AucUtilFixAH, v8.2.6371 (SwimmingSeadragon)
BagBrother, v
Bagnon, v8.3.8
Bartender4, v4.9.0
BeanCounter, v8.2.6434 (SwimmingSeadragon)
BrokerPetHappiness, vv1.2
buffOmat, v1.82
CharacterStatsClassic, v3.6.1
ClassicCastbars, vv1.3.9
ClassicCastbarsOptions, v
DBMCore, v1.13.55
DBMDefaultSkin, v
DBMStatusBarTimers, v
DurabilityStatus, v4.4.2
Enchantrix, v8.2.6428 (SwimmingSeadragon)
EnchantrixBarker, v8.2.6469 (SwimmingSeadragon)
ExoLink, v1.0.1
ExoLinkBIS, v1.0.1
FishingBuddy, v0.7.3 Beta 7
FlightMastersClassic, vv1.2
GatherMate2, v1.45.5
HealBot, v1.13.5.0
HealBotData, v1.13.5.0
HealBoten, v1.13.5.0
HealBotExtraSkins, v1.13.5.0
HealBotOptions, v1.13.5.0
HealBotTips, v1.13.5.0
InFlightLoad, v1.13.005
Informant, v8.2.6374 (SwimmingSeadragon)
Pawn, v2.3.29
PetXP, v0.2
PowerAuras, v4.31.0
Prat30, v3.8.26
Prat30Libraries, v
Questie, v6.0.4
Recount, vv1.13.5a
Scrap, v8.3.2
ShowMeMyHeal, v0.6.1
SpartanUI, v5.3.2
SpartanUIArtwork, v5.3.2
SpartanUIFilmEffects, v5.3.2
SpartanUIPartyFrames, v5.3.2
SpartanUIPlayerFrames, v5.3.2
SpartanUIRaidFrames, v5.3.2
SpartanUISpinCam, v5.3.2
SpartanUIStyleFel, v5.3.2
SpartanUIStyleMinimal, v5.3.2
SpartanUIStyleTransparent, v5.3.2
SpartanUIStyleWar, v5.3.2
Stubby, v8.2.6376 (SwimmingSeadragon)
TellMeWhen, v8.7.5
Thaliz, v0.5.2
ThreatClassic2, v2.23
TomTom, vv11305-1.1.3
WhatsTraining, v1.8.7
WorldBuffTracker, v11327
XPTracker, v1.1.2
BlizRuntimeLib_enUS v1.13.5.11305
(ck=80e)