Hi , I have the same Probem. After update to MAC OS Catalina 10.15.7t Norton 360 was still running. Then restart, Norton cannot be stared. Uninstal via menu does not react neither. I tried to move Norton app to trash bin and did a new installation without failure messages. After restrt, demanded by by norton setup, there is no norton app in program folder.
Your request to post log files: I have no clue how to do that, sorry
Please advice.
Thanks