Error in buildingBuilt event handler

[Lyrrix]

At the beginning of my turn I got an error message in the notifications area that says:
"Error in buildingBuilt event handler <function onBuildingBuilt at 0x50AFA8F0>"

Thought you ought to know.

 

[Stormwind]

When you get this error, please post the contents of pythonerr.log (my games/beyond the sword/logs)