Issue creating new notebooks on Macbook with M1 chip: "Unexpected error while saving file: Untitled2.ipynb database disk image is malformed"

i am having trouble creating new notebooks in jupyter notebook.
I have recently switched macbook from an interl chip to and M1 and presume this may have caused some issues.
i can run my old notebooks.
i have tried to remove nbsignatures.db as suggested online but this has not helped.
please help me resolve this!