I get the following LUA error when taking the first quest for Exiles reach beginner zone:

Message: Interface\AddOns\Grail\Grail.lua:6947: attempt to index field '?' (a nil value)
Time: Thu Jan 7 22:14:51 2021
Count: 1
Stack: Interface\AddOns\Grail\Grail.lua:6947: attempt to index field '?' (a nil value)
[string "@interface\AddOns\Grail\Grail.lua"]:6947: in function GetPlayerMapPosition' [string "@Interface\AddOns\Grail\Grail.lua"]:11031: in function Coordinates'
[string "@interface\AddOns\Grail\Grail.lua"]:1881: in function ?' [string "@Interface\AddOns\Grail\Grail.lua"]:11074: in function _Tooltip_OnEvent'
[string "@interface\AddOns\Grail\Grail.lua"]:11622: in function <Interface\AddOns\Grail\Grail.lua:11622>

Locals: unitName = "player"
MapID = 1727
R =

{
}
P = {
DivideBy = defined @interface\SharedXML\Vector2D.lua:90
GetLength = defined @interface\SharedXML\Vector2D.lua:118
Normalize = defined @interface\SharedXML\Vector2D.lua:122
Dot = defined @interface\SharedXML\Vector2D.lua:106
GetLengthSquared = defined @interface\SharedXML\Vector2D.lua:114
GetXY = defined @interface\SharedXML\Vector2D.lua:77
OnLoad = defined @interface\SharedXML\Vector2D.lua:68
IsZero = defined @interface\SharedXML\Vector2D.lua:110
RotateDirection = defined @interface\SharedXML\Vector2D.lua:126
x = 0
y = 0
IsEqualTo = defined @interface\SharedXML\Vector2D.lua:72
Clone = defined @interface\SharedXML\Vector2D.lua:130
Cross = defined @interface\SharedXML\Vector2D.lua:102
Subtract = defined @interface\SharedXML\Vector2D.lua:98
SetXY = defined @interface\SharedXML\Vector2D.lua:81
ScaleBy = defined @interface\SharedXML\Vector2D.lua:86
Add = defined @interface\SharedXML\Vector2D.lua:94
}
_ = nil
(*temporary) = nil
(*temporary) = nil
(*temporary) = {
DivideBy = defined @interface\SharedXML\Vector2D.lua:90
GetLength = defined @interface\SharedXML\Vector2D.lua:118
Normalize = defined @interface\SharedXML\Vector2D.lua:122
Dot = defined @interface\SharedXML\Vector2D.lua:106
GetLengthSquared = defined @interface\SharedXML\Vector2D.lua:114
GetXY = defined @interface\SharedXML\Vector2D.lua:77
OnLoad = defined @interface\SharedXML\Vector2D.lua:68
IsZero = defined @interface\SharedXML\Vector2D.lua:110
RotateDirection = defined @interface\SharedXML\Vector2D.lua:126
x = 1
y = 1
IsEqualTo = defined @interface\SharedXML\Vector2D.lua:72
Clone = defined @interface\SharedXML\Vector2D.lua:130
Cross = defined @interface\SharedXML\Vector2D.lua:102
Subtract = defined @interface\SharedXML\Vector2D.lua:98
SetXY = defined @interface\SharedXML\Vector2D.lua:81
ScaleBy = defined @interface\SharedXML\Vector2D.lua:86
Add = defined @interface\SharedXML\Vector2D.lua:94
}
(*temporary) = 1
(*temporary) = 1
(*temporary) = "attempt to index field '?' (a nil value)"