The traceback is always the same with this plugin because the lastest method used is "load" :
["C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Morgan74DevTools.rb:48:inload'", "C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Morgan74DevTools.rb:48:in AutoReload'", "C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Morgan74DevTools.rb:44:in upto'", "C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Morgan74DevTools.rb:44:in AutoReload'", "C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Morgan74DevTools.rb:35:in startTimer'", "C:/Program Files (x86)/Google/Google SketchUp 7/Plugins/Morgan74DevTools.rb:34:in call'"]
But you have in the error message the line of the error and a "small" description :
http://lh5.ggpht.com/_6btJdjutpH4/TKw-MbBTbgI/AAAAAAAACMQ/CiQ9UrtbW9A/s800/Error2.PNG