WowAce

Hello, hope you could take a look please, if you have the time - as soon as I try to open /quartz I am getting the following error (tried disabling ALL other addons, still getting it). The addon itself works fine so far other than the occasional harmless(?) error which is to be expected so early after a major update.

1x Quartz/Config.lua:197: attempt to call global 'InterfaceOptionsFrame_OpenToCategory' (a nil value)
[Quartz/Config.lua]:197: in function '?'
[Dominos/libs/AceConsole-3.0-7/AceConsole-3.0.lua]:90: in function '?'
[Blizzard_ChatFrameBase/Shared/ChatFrameEditBox.lua]:227: in function <...s/Blizzard_ChatFrameBase/Shared/ChatFrameEditBox.lua:174>
[C]: in function 'ParseText'
[Blizzard_ChatFrameBase/Shared/ChatFrameEditBox.lua]:252: in function <...s/Blizzard_ChatFrameBase/Shared/ChatFrameEditBox.lua:251>
[C]: in function 'SendText'
[Blizzard_ChatFrameBase/Shared/ChatFrameEditBox.lua]:370: in function <...s/Blizzard_ChatFrameBase/Shared/ChatFrameEditBox.lua:366>

Locals:
self = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
CastBarTemplate = <table> {
}
name = "Quartz3"
orderedModules = <table> {
}
Util = <table> {
}
optFrames = <table> {
}
baseName = "Quartz"
db = <table> {
}
defaultModuleState = true
enabledState = true
}
input = ""
(*temporary) = nil
(*temporary) = Frame {
obj = <table> {
}
parent = "Quartz 3"
name = 8
}
(*temporary) = "attempt to call global 'InterfaceOptionsFrame_OpenToCategory' (a nil value)"
Quartz3 = <table> {
modules = <table> {
}
defaultModuleLibraries = <table> {
}
CastBarTemplate = <table> {
}
name = "Quartz3"
orderedModules = <table> {
}
Util = <table> {
}
optFrames = <table> {
}
baseName = "Quartz"
db = <table> {
}
defaultModuleState = true
enabledState = true
}

Sorry forgot to mention this is referring to Quartz version 3.7.6 (for ver 2.5.4) which I guess was for last iteration of TBC Classic, where now Anniversary Classic is already v 2.5.5