Unable to login to desk

Am facing a problem with my erpnext as am trying to login to /desk and am getting this error popup ‘list’ object has no attribute ‘get’ what could be the issue. I tried to search in the forum but no clear solution to this. could this be a bug or something… kindly help. Yesterday the system was ok but I tried to bench update yestarday and that could be the issue here.

Are you on develop or master branch?

Please check browsers console, and share the traceback.

thank you for your assistance…
am on master branch and I qas able to solve this after so much seaech on
the forum.
i had git stash and then bench update reset.