Comment 2 for bug 1926872

There was an error when the upgrade process was communicating with the mirror of the Ubuntu archive which you use. Please try the upgrade again and see if the mirror is working better, if not I'd suggest switching mirrors of the Ubuntu archive.

2021-05-02 13:22:33,988 DEBUG examining: 'deb http://mirrors.piconets.webwerks.in/ubuntu-mirror/ubuntu/ groovy main restricted'
2021-05-02 13:22:33,989 DEBUG verifySourcesListEntry: deb http://mirrors.piconets.webwerks.in/ubuntu-mirror/ubuntu/ hirsute main restricted
2021-05-02 13:22:33,989 DEBUG url_downloadable: http://mirrors.piconets.webwerks.in/ubuntu-mirror/ubuntu//dists/hirsute/Release
2021-05-02 13:22:33,989 DEBUG s='http' n='mirrors.piconets.webwerks.in' p='/ubuntu-mirror/ubuntu//dists/hirsute/Release' q='' f=''
2021-05-02 13:22:34,008 DEBUG error from httplib: 'HTTP Error 500: Internal Server Error'