Could you please check the following?
Access to the Google Console and make sure that in the top left corner you have selected the project you are using at the Bitnami Launchpad for Google Cloud Platform.
In the menu that appears by clicking the "Burger" button present at the top left of the page, select "API Manager"
Check if in the resulting page you see the "Google Compute Engine API" enabled. If it's not present, please enable it by clicking the "Enable API" button that you can see on the top of the page, next to "Dashboard", and selecting the "Google Compute Engine API".
Do you still face the issue in the Launchpad after enabling the "Google Compute Engine API"?