You might want to check with the suppliers of Mazaik and see if they've issued an updated version of the plugin. SU2014 uses Ruby 2.0 while SU8 used an older and now unsupported version of Ruby. This required many plugins to be updated to meet the newer Ruby standards. There have been many folks reporting errors on plugins they've copied over from an older version of SketchUp and the standard advice which has been repeated on SCF ad nauseum is to not copy plugins but download fresh versions.
J