found more backend changes and fixed
found more backend changes and fixed

QISKit/qiskit-sdk-py,ChristopheVuillot/qiskit-sdk-py,atilag/qiskit-sdk-py,atilag/qiskit-sdk-py,QISKit/qiskit-sdk-py,ChristopheVuillot/qiskit-sdk-py,QISKit/qiskit-sdk-py,atilag/qiskit-sdk-py,ChristopheVuillot/qiskit-sdk-py