Failed to uninstall with Homebrew

[beatak]

I have BlockBlock 1.0.2 on Big Sur (11.1) on Intel. The following happens whether if BlockBlock is running or not. Any suggestions?

% brew uninstall blockblock
==> Uninstalling Cask blockblock
==> Running uninstall script /usr/local/Caskroom/blockblock/1.0.2/BlockBlock Installer.app/Contents/MacOS/BlockBlock Installer
2020-12-24 13:31:39.150 BlockBlock Installer[25447:951545] Sentry Started -- Version: 3.12.4
INFO : KSCrash.m (339): -[KSCrash sendAllReportsWithCompletion:]: Sending 0 crash reports
No matching processes were found

BLOCKBLOCK ERROR: uninstall failed

Error: Failure while executing; `/usr/bin/sudo -E -- /usr/local/Caskroom/blockblock/1.0.2/BlockBlock\ Installer.app/Contents/MacOS/BlockBlock\ Installer -uninstall` exited with 255. Here's the output:
2020-12-24 13:31:39.150 BlockBlock Installer[25447:951545] Sentry Started -- Version: 3.12.4
INFO : KSCrash.m (339): -[KSCrash sendAllReportsWithCompletion:]: Sending 0 crash reports
No matching processes were found

BLOCKBLOCK ERROR: uninstall failed