Please apply attached patch with 'sudo patch /usr/share/backintime/common/tools.py < dbus.patch'. Than run 'backintime --pw-cache stop; backintime --pw-cache start' and try again.
Please apply attached patch with 'sudo patch /usr/share/ backintime/ common/ tools.py < dbus.patch'. Than run 'backintime --pw-cache stop; backintime --pw-cache start' and try again.