Okay, I finally fixed these problems.
- I resized the storage to give some room to Discord. I created a snapshot to the Discord VM in GCP and restored it with a bigger storage.
- I changed the content of the
containers/app.ymlfile:
From
templates:
- "templates/postgres.template.yml"
to
templates:
- "templates/postgres.13.template.yml"
Then I did ./launcher rebuild app with no problems anymore.
Thanks!