WowAce

Addon was working fine until the update to 9.0.1. I'm now getting the following error upon logging into the game. I'm not sure if this addon is still being supported since it been 5 years/3 expansions since the last update, but wanted to post just in case. Thanks.

1x SignOn\Core.lua:89: attempt to call global 'GetNumFriends' (a nil value)
[string "@SignOn\Core.lua"]:89: in function <SignOn\Core.lua:55>
[string "@SignOn\Core.lua"]:115: in function <SignOn\Core.lua:103>
[string "@SignOn\Core.lua"]:182: in function `?'
[string "@AchieveIt\libs\CallbackHandler-1.0\CallbackHandler-1.0-7.lua"]:119: in function <...eIt\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:119>
[string "=[C]"]: ?
[string "@AchieveIt\libs\CallbackHandler-1.0\CallbackHandler-1.0-7.lua"]:29: in function <...eIt\libs\CallbackHandler-1.0\CallbackHandler-1.0.lua:25>
[string "@AchieveIt\libs\CallbackHandler-1.0\CallbackHandler-1.0-7.lua"]:64: in function `Fire'
[string "@Prat-3.0-3.8.26\addon\addon.lua"]:698: in function <Prat-3.0\addon\addon.lua:613>
[string "=(tail call)"]: ?
[string "@FrameXML\ChatFrame.lua"]:3031: in function <FrameXML\ChatFrame.lua:3024>
[string "=(tail call)"]: ?
[string "*:OnEvent"]:1: in function <[string "*:OnEvent"]:1>