thankyou !
my gosh, just missing one option, and i didn’t read comment in prod.exs
# ## Using releases (Elixir v1.9+)
#
# If you are doing OTP releases, you need to instruct Phoenix
# to start each relevant endpoint:
#
# config :wablaster_admin, WablasterAdminWeb.Endpoint, server: true
#
# Then you can assemble a release by calling `mix release`.
# See `mix help release` for more information.
