Im running the upgrade from both the web GUI & command line (not at the same time). From what I can see (cannot find any log files) there is no url for freeBDS 11 to upgrade to 20.7
Any guidance would be great. Feel free to let me know what information you require.
20.7 is based on FreeBSD 12. I am not familiar with the install process if you use an already running FreeBSD system, but this is probably the cause of your problem.