Greetings all ...

I am trying to wrap my head around an issue I am having when trying to customize a stock theme on a fresh install of concrete5.6.3.2 on a bitnami VM,
https://bitnami.com/stack/concrete5/virtual-machine...

By copying /concrete/themes/greensalad to the /themes folder, then renaming it to green_salad_custom and proceeding to install & activate the theme through the dashboard. I get the following error when viewing the site:

"File /opt/bitnami/apps/concrete5/htdocs/concrete/themes/green_salad_custom/default.php not found. All themes need default.php and view.php files in them. Consult concrete5 documentation on how to create these files."

Installing a theme through the marketplace, or dropping it in the /packages folder works as expected. AFAIK only a custom theme returns this error.

What could be causing this problem?

Thanks in advance!