Addon.lua:15: attempt to call global 'GetAddOnMetadata' (a nil value)

[Ookami313]

Unsure if the addon is still being supported but I'm posting just in case. Update to 11.0.2 is causing errors to occur when logging in. Thanks.

5x HandyNotes_FieldPhotographer/Addon.lua:15: attempt to call global 'GetAddOnMetadata' (a nil value)
[string "@HandyNotes_FieldPhotographer/Addon.lua"]:15: in main chunk

Locals:
ADDON_NAME = "HandyNotes_FieldPhotographer"
HandyNotes =

{
modules = {
}
plugins = {
}
defaultModuleLibraries = {
}
name = "HandyNotes"
orderedModules = {
}
baseName = "HandyNotes"
db = {
}
WorldMapDataProvider = {
}
enabledState = true
defaultModuleState = true
}
ACHIEVEMENT_ID = 9924
ACHIEVEMENT_NAME = "Field Photographer"
(*temporary) = nil
(*temporary) = "HandyNotes_FieldPhotographer"
(*temporary) = "Title"
(*temporary) = "attempt to call global 'GetAddOnMetadata' (a nil value)"

[yoshimo]

just change GetAddOnMetadata to C_AddOns.GetAddOnMetadata 11.0.2 removed some deprecated calls.

[Dhragas]

Also change:
GetAddOnMetadata → C_AddOns.GetAddOnMetadata
UnitBuff → C_UnitAuras.GetBuffDataByIndex