I’d recommend you to check if the embedded webcontainer is up and running in the Tools / Web Services Container menu of the VDP Admin Tool. If it is up and running, check if you have started the desired web admin tools. The section [Starting Platform Servers and Tools](https://community.denodo.com/docs/html/browse/7.0/platform/installation/denodo_platform_control_center/starting_platform_servers_and_tools/starting_platform_servers_and_tools) of the [Installation Guide](https://community.denodo.com/docs/html/browse/7.0/platform/installation/index) describes how to start and stop these tools.
Further, I’d check if other services/applications are using port 9090 and to check if your firewall allows connections to port 9090. If so, you can change the port used by the web container to select any other port that is not in use. The section [Denodo Platform Configuration](https://community.denodo.com/docs/html/browse/7.0/platform/installation/denodo_platform_control_center/virtual_machine_and_web_container_configuration/virtual_machine_and_web_container_configuration) of the [Installation Guide](https://community.denodo.com/docs/html/browse/7.0/platform/installation/index) describes how to configure that. You should also check that your firewall allows connections to the configured port.
If these solutions do not work for you, I’d suggest to open a support ticket in the [Denodo Support Site](https://support.denodo.com/) in case you have a Denodo Support account in order to get further assistance.
Hope this helps!