error lua

[Николай Калашников]

Message: Interface\AddOns\epgp\epgp.lua:239: Usage: Ambiguate(fullName, context)

Time: 12/20/17 20:48:05

Count: 2

Stack: Interface\AddOns\epgp\epgp.lua:239: Usage: Ambiguate(fullName, context)

Interface\SharedXML\SharedBasicControls.lua:208: in function <Interface\SharedXML\SharedBasicControls.lua:207>

[C]: ?

[C]: in function `Ambiguate'

Interface\AddOns\epgp\epgp.lua:239: in function <Interface\AddOns\epgp\epgp.lua:238>

[C]: in function `sort'

Interface\AddOns\epgp\epgp.lua:326: in function <Interface\AddOns\epgp\epgp.lua:300>

Interface\AddOns\epgp\epgp.lua:485: in function <Interface\AddOns\epgp\epgp.lua:483>

(tail call): ?

Interface\AddOns\epgp\modules\ui.lua:1242: in function `TextUpdate'

Interface\AddOns\epgp\modules\ui.lua:1342: in function <Interface\AddOns\epgp\modules\ui.lua:1340>

Locals: errorMessage = "Interface\AddOns\epgp\epgp.lua:239: Usage: Ambiguate(fullName, context)"

DisplayMessageInternal = <function> defined @Interface\SharedXML\SharedBasicControls.lua:191

MESSAGE_TYPE_ERROR = 0

recently started to appear this error, how to fix it?