[MoP Classic] `UpdateTextString` error

[Road-block]

1x ...vancedInterfaceOptions/gui/StatusTextConfigPanel.lua:46: attempt to call method 'UpdateTextString' (a nil value)
[Ace3/AceGUI-3.0-41/AceGUI-3.0.lua]:300: in function 'Fire'
[Ace3/AceGUI-3.0-41/widgets/AceGUIWidget-CheckBox.lua]:64: in function <...ns/Ace3/AceGUI-3.0/widgets/AceGUIWidget-CheckBox.lua:53>

Addon version: 2.1.3

WoW build: 5.5.0.61820 "Jul 2 2025"

rest of the callstack

Locals:
self = <table> {
 checked = true
 highlight = Texture {
 }
 parent = <table> {
 }
 userdata = <table> {
 }
 base = <table> {
 }
 checkbg = Texture {
 }
 type = "CheckBox"
 AceGUIWidgetVersion = 26
 image = Texture {
 }
 text = FontString {
 }
 width = "fill"
 events = <table> {
 }
 disabled = false
 check = Texture {
 }
 frame = Button {
 }
}
name = "OnValueChanged"