This error always happens to me either in Arena or Raids sometimes.

Message: ...e\AddOns\AftermathhUI\Libs\oUF\elements\portrait.lua:65: script ran too long
Time: 06/03/17 04:32:58
Count: 3
Stack: ...e\AddOns\AftermathhUI\Libs\oUF\elements\portrait.lua:65: in function <...e\AddOns\AftermathhUI\Libs\oUF\elements\portrait.lua:38>
(tail call): ?
Interface\AddOns\AftermathhUI\Libs\oUF\ouf.lua:200: in function func' Interface\AddOns\AftermathhUI\Libs\oUF\events.lua:50: in function <Interface\AddOns\AftermathhUI\Libs\oUF\events.lua:48> (tail call): ? [C]: in function TargetUnit'
Interface\FrameXML\SecureTemplates.lua:483: in function handler' Interface\FrameXML\SecureTemplates.lua:619: in function SecureActionButton_OnClick'
Interface\FrameXML\SecureTemplates.lua:659: in function <Interface\FrameXML\SecureTemplates.lua:651>

Locals: self = oUF_AftermathhTarget {
0 =
UNIT_PORTRAIT_UPDATE = defined @interface\AddOns\AftermathhUI\Libs\oUF\elements\portrait.lua:83

IIRC, that's Blizz bug and they aren't really sure what's causing it.

P.S. Cleaned up error log.

You already posted this error and we explained to you why we cant fix it in #330.