Qubes Bedien- / Steuerleist feht (Qubes Upper operating/control bar/ Panel is missing))

quick question During an update my laptop turned off because I forgot to charge my battery. After starting, the same error message kept popping up, so I followed the factory reset steps (recommended according to the documentation). I had to do this twice until qubes did halfway loaded again. Now I’m missing the top control bar/control elements.
Does anyone know how I can get it back or restore it?