Can you try to set the following in your app.yml file and rebuild?
env:
LANG: 'ru_RU.UTF-8'
...
The error you are seeing is likely related to Postgres error upgrading from 3.3 to 3.4 caused by locale issues.
Can you try to set the following in your app.yml file and rebuild?
env:
LANG: 'ru_RU.UTF-8'
...
The error you are seeing is likely related to Postgres error upgrading from 3.3 to 3.4 caused by locale issues.