firstable thank you for this awesome RIG and the picker, i'm currently using it for an animation at home, just to keep myself busy and for fun

But......
I am using maya 2013, with the last version of malcom and the last picker version also. Everything was working properly (installation of the picker with malcom as a reference) but yesterday i think I've done something wrong. I've double clicked on the picker so it has moved to the "channel box/Layer Editor", cause i wanted it back as normal I've clicked on the red crosses to close it but now when i click the AbxPicker button on my custom bar nothing happen.... it is driving me crazy cause i know the picker is hidding somewhere, just waiting for me

I've tried to reinstall the picker, creating a new button but it doesn't change anything, and on the script editor I have no error message just the classic :
loadPlugin -qt "C:/Users/Fabi1/Documents/maya/2013_Picker/AnimSchoolPicker.mll";
AnimSchoolPicker();
Can someone help me please?
Thank you,
Fabien