Need Help - Re-Installing AdGuard on Linux Server in Linode

[ask4itall]

Please help me with the command to re-install AdguardHome on a Linux server hosted in Linode. During the upgrade process I lost web access to the GUI interface; however, I can access the server via SSH in Linode.

curl -s -S -L https://raw.githubusercontent.com/AdguardTeam/AdGuardHome/master/scripts/install.sh | sh -s -- -v

Here is the message I get:

script is executed with root privileges
the existing AdGuard Home installation is detected
to reinstall/uninstall the AdGuard Home using this script specify one of the '-r' or '-u' flags

Thank you for your consideration & help!