exposedByDefault

I am using Traefik 1.7.14 in docker. If I provide the option

exposedByDefault = false

I am not able to access the dashboard of my sites. It shows "404 page not found"
I tried adding to traefik.toml:

[api]
traefik.enable=true

but to no avail. Please help.

I also tried to add the label to the docker run command... no luck

-l traefik.enable=true