I met the same problem with mysql.
Your Entry's 'published' field is defined as :time? Look migration file for Entry, such as db/migrate/XXXXX_create_entries.rb
After changing :time
to :datetime
, everything goes fine.
Please try this solution.
P.S.
In development env, the problem does not happen. I think SQLite differ in the way to handle the field :time
from the way of MySQL.