While valor farming in low keys <10 get the following error:
Message: ...ace\AddOns\MythicDungeonTools\MythicDungeonTools.lua:1901: attempt to index local 'clone' (a nil value)

What version of MDT were you running?
Could you show the full Error Message and if possible export the Route where this error happens and paste the import string here!

Sorry i manually fixed it while i was grinding keys, but i updated today and reverted my changes and it seems to have been resolved.

Thanks for all your hard work :)