bindprofx error and no results

I installed BindProfX as explained and made the directories as said in the readme file. When it finishes I get the align.out and the interface pdb correctly but the results are empty files. I get an error, even running the getXprofScore.sh on the demo files, I don't know what I need to do to fix it :

Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Scanner.java:864)
at java.util.Scanner.next(Scanner.java:1485)
at java.util.Scanner.nextDouble(Scanner.java:2413)
at sequence.SubstitutionMatrix.(SubstitutionMatrix.java:45)
at xprofile.XProfEC.(XProfEC.java:16)
at xprofile.AnalysisMutantEnergy.(AnalysisMutantEnergy.java:33)
at xprofile.AnalysisMutantEnergy.main(AnalysisMutantEnergy.java:62)

What does this mean ?