FP Growth can't start

Question

My datasets is in UCI Datasets student-mat.csv

Now, I want to use FP Growth, but it displays in gray color, however, I transfer data format to binary.

This is my step.

1. Choose→weka →filters →unsupervised→attribute →NumericToNomial -> apply

2. Choose→weka →filters →unsupervised→attribute →NomialToBinary -> Class(NoClass)-> apply

3. Choose→weka →filters →unsupervised→attribute -> NumericToBinary -> ignoreClass=True -> OK -> apply

It still displays in gray color, why? How should I do ?