How to delete quantrocket from docker?

i have just taken the latest version of quantrocket and i am getting error.
I think it is due to an old version of quantrocket i have installed.
How can i delete all installations of quantrocket from docker, so that i have a clean start.
any help would be appreciated

To completely remove QuantRocket on Windows or Mac, you can uninstall Docker. This will delete any code and databases you have in QuantRocket, so back those up first if you need them.