What steps will reproduce the problem?

After login there are no bars and I get the error:

Yata-r63\TotemBar.lua:88 attempt to index local 'set' (a nil value)
Yata-r63\Core.lua:43 in function <Interface\AddOns\Yata\Core.lua:40
(tail call): ?:
<in C code>: ?
<string>:"safecall Dispatcher[1]":9: in function <[string "safecall Dispatcher[1]"]:5>
(tail call): ?:
AceAddon-3.0-5 (Ace3):531: in function `EnableAddon'
AceAddon-3.0-5 (Ace3):621: in function <Interface\AddOns\Ace3\AceAddon-3.0\AceAddon-3.0.lua:607
<in C code>: in function `LoadAddOn'
Interface\FrameXML\UIParent.lua:229 in function `UIParentLoadAddOn':
Interface\FrameXML\UIParent.lua:252 in function `CombatLog_LoadUI':
Interface\FrameXML\UIParent.lua:497 in function <Interface\FrameXML\UIParent.lua:469

After clicking on the FuBar Plugin (to unlock the bars) I get the error:

Yata-r63\TotemBar.lua:225 attempt to perform arithmetic on a nil value
Yata-r63\TotemBar.lua:147 in function `StopMoving'
Yata-r63\Options.lua:227 in function `OnClick'
Broker2FuBar-1.0\pluginPrototype.lua:51 in function `OnFuBarClick'
LibFuBarPlugin-3.0-90063:1342: in function <...FuBar\libs\LibFuBarPlugin-3.0\LibFuBarPlugin-3.0.lua:1338
FuBar-3.0.90012\FuBar.lua:1201 in function <Interface\AddOns\FuBar\FuBar.lua:1199

When trying to create a new set:

Yata-r63\TotemSets.lua:31 attempt to index local 'header' (a nil value)
Yata-r63\TotemButtonLayoutEditor.lua:114 in function <Interface\AddOns\Yata\TotemButtonLayoutEditor.lua:112
Yata-r63\TotemButtonLayoutEditor.lua:183 in function `AddSet'
Yata-r63\Options.lua:255 in function `OnAccept'
Interface\FrameXML\StaticPopup.lua:3055 in function `StaticPopup_OnClick':
<string>:"*:OnClick":1: in function <[string "*:OnClick"]:1>

What version of the product are you using?

r63