Authors CurseForge

Hello, I've been playing on a WOLTK server V3.3.5 and when i try using PlateBuffs im getting this:

Can anyone help me resolve this issue please?Thanks a lot

Date: 2019-05-15 13:04:38
ID: 2
Error occured in: Global
Count: 1
Message: ..\AddOns\PlateBuffs\options.lua line 41:
attempt to index upvalue 'P' (a nil value)
Debug:
(tail call): ?
PlateBuffs\options.lua:41:
PlateBuffs\options.lua:35
PlateBuffs\combatlog.lua:25:
PlateBuffs\combatlog.lua:24
(tail call): ?
[C]: ?
[string "safecall Dispatcher[1]"]:9:
[string "safecall Dispatcher[1]"]:5
(tail call): ?
...AddOns\ElvUI\Libraries\AceAddon-3.0\AceAddon-3.0.lua:558: EnableAddon()
...AddOns\ElvUI\Libraries\AceAddon-3.0\AceAddon-3.0.lua:651:
...AddOns\ElvUI\Libraries\AceAddon-3.0\AceAddon-3.0.lua:636
[C]: LoadAddOn()
..\FrameXML\UIParent.lua:235: UIParentLoadAddOn()
..\FrameXML\UIParent.lua:258: CombatLog_LoadUI()
..\FrameXML\UIParent.lua:482:
..\FrameXML\UIParent.lua:454