Problem with GAabbreviate

[rxng]

Hi,

No matter what data I use, the package seems to show this error

Iter = 518 | Mean = 3.326035 | Best = 3.324935 Iter = 519 | Mean = 3.327266 | Best = 3.324935 Iter = 520 | Mean = 3.327556 | Best = 3.324935 Iter = 521 | Mean = 3.327556 | Best = 3.324935 Iter = 522 | Mean = 3.328764 | Best = 3.324935 Error in keys[[key]] : subscript out of bounds

Is there something that I am doing wrong? The plot still shows...

Thank you!