What steps will reproduce the problem?

1. Mouse over on target of target (target frame)

What version of ShestakUI are you using? (Stating 'latest' is not useful)

1.13.2

Do you have an error log of what happened?

Message: Interface\AddOns\AtlasLootClassic\Core\Tooltip.lua:126: Usage: UnitGUID("unit")
Time: Fri Sep 20 13:16:17 2019
Count: 2
Stack: Interface\AddOns\AtlasLootClassic\Core\Tooltip.lua:126: Usage: UnitGUID("unit")
[C]: ?
Interface\AddOns\AtlasLootClassic\Core\Tooltip.lua:126: in function <Interface\AddOns\AtlasLootClassic\Core\Tooltip.lua:124>
[C]: ?
[C]: ?
[C]: ?
[C]: in function SetUnit' Interface\FrameXML\UnitFrame.lua:291: in function UnitFrame_UpdateTooltip'
Interface\FrameXML\UnitFrame.lua:277: in function <Interface\FrameXML\UnitFrame.lua:264>

Locals: (*temporary) = nil

Any additional information? (example: WoW language if not English) (Attach screenshots here if available, do not link externally)

Wow language - rus

#57