Skada lua error

1x Skada-1.8.87ModulesDeaths.lua:946: bad argument #1 to 'abs' (number expected, got string)
Skada-1.8.87ModulesDeaths.lua:946: in function `Announce'
Skada-1.8.87ModulesDeaths.lua:171: in function `func'
Skada-1.8.87CoreInit.lua:1243: in function `DispatchSets'
Skada-1.8.87ModulesDeaths.lua:302: in function `func'
Skada-1.8.87CoreCore.lua:3134: in function <SkadaCoreCore.lua:3034>
(tail call): ?:
(tail call): ?:
CallbackHandler-1.0-6:147: in function <...antlibsCallbackHandler-1.0CallbackHandler-1.0.lua:147>
<string>:"safecall Dispatcher[9]":4: in function <[string "safecall Dispatcher[9]"]:4>
<in C code>: ?
<string>:"safecall Dispatcher[9]":13: in function `?'
CallbackHandler-1.0-6:92: in function `Fire'
AceEvent-3.0-4 (DBM-Core):120: in function <...OnsDBM-CoreLibsAce3AceEvent-3.0AceEvent-3.0.lua:119>

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Never occured before. Could be the latest update aka changelog, could be the latest DBM update. Any suggestions?

It occured last night on my warrior in Halls of Lightning. Tried to reproduce it today, but failed so far.