Error when migrating to an external postgres instance

Installation
10 
[3] pry(main)> ActiveRecord::Base.connection_pool.db_config.configuration_hash
=> {:adapter=>"postgresql",
 :pool=>8,
 :connect_timeout=>5,
 :socket=>"/var/run/postgresql",
 :host=>"[REDACTED]",
 :port=>9432,
 :backup_port=>5432,
 :username=>"[REDACTED]",
 :password=>"[REDACTED]",
 :host_names=>["[REDACTED]"],
 :database=>"[REDACTED]",
 :prepared_statements=>false,
 :idle_timeout=>30,
 :reaping_frequency=>30,
 :advisory_locks=>true}