Classification error for parfor

I wished to write the below code in parallel:

   max=0;
          numvalues1=OpParam(1);
          numvalues2=OpParam(2);
          for i =LB(1):((UB(1)-LB(1))/(numvalues1 -1)):UB(1),
              for j =LB(2):((UB(2)-LB(2))/(numvalues2 -1)):UB(2
                  acc=ComputeCbetaPerm( [i j],featureMatrix,labelMatrix);
                  if(acc < max)
                      acc=max;   
                      values=[i j];
                  end
              end
      end

I Changed to the below to avoid the use of temporary variable `max` but still it gives an error of classification which I don't get.

          numvalues1=OpParam(1);
          numvalues2=OpParam(2);
          Result=cell(numvalues1,numvalues2,1);
          outervalues=LB(1):((UB(1)-LB(1))/(numvalues1 -1)):UB(1);
          innervalues=LB(2):((UB(2)-LB(2))/(numvalues2 -1)):UB(2); 
          for (i =1:numel(outervalues)),
              parfor (j =1:numel(innervalues)),
                  acc=ComputeCbetaPerm( [outervalues(i) innervalues(j)],featureMatrix,labelMatrix);
                  Result(i,:,1)={outervalues(i),innervalues(j),acc};
              end
          end
Also asked http://stackoverflow.com/questions/29414645/classification-error-for-parfor