I was able to update the plugin in the past but recently it is not possible.
The plugin id is 1024395026904248839
and it is not disconnected from the manifest version.
After I select [publish] plugin and I select the appropriate item, the button [next] gets activated , I click on that and nothing happen.
Thanks @tank666, It worked finally after importing the manifest from that particular place in the account/plugins view. Importing from manifest in other place in the app, like the contextual menu, is not working.