can't access heroku console in cmd line

here's my stack info: Stack: bamboo-mri-1.9.2

When I try to access the heroku console via the following command: heroku run -a pakrat script/rails console (pakrat is my app name)

I get the following error: /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:1032:in initialize': could not translate host name "ec2-107-22-169-50.compute-1.amazonaws.com" to address: Name or service not known (PGError) from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:1032:innew' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:1032:in connect' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:301:ininitialize' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:28:in new' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:28:inpostgresql_connection' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:304:in new_connection' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:323:incheckout_new_connection' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:265:in block (2 levels) in checkout' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:inloop' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:261:in block in checkout' from /usr/ruby1.9.2/lib/ruby/1.9.1/monitor.rb:201:inmon_synchronize' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:260:in checkout' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:162:inconnection' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_pool.rb:409:in retrieve_connection' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_specification.rb:107:inretrieve_connection' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract/connection_specification.rb:89:in connection' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/base.rb:703:intable_exists?' from /app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/base.rb:798:in attribute_names' from /app/.bundle/gems/ruby/1.9.1/gems/actionpack-3.1.1/lib/action_controller/metal/params_wrapper.rb:168:in_set_wrapper_defaults' from /app/.bundle/gems/ruby/1.9.1/gems/actionpack-3.1.1/lib/action_controller/metal/params_wrapper.rb:128:in inherited' from /app/.bundle/gems/ruby/1.9.1/gems/actionpack-3.1.1/lib/abstract_controller/railties/routes_helpers.rb:7:inblock (2 levels) in with' from /app/.bundle/gems/ruby/1.9.1/gems/actionpack-3.1.1/lib/action_controller/railties/paths.rb:7:in block (2 levels) in with' from /app/app/controllers/authentications_controller.rb:1:in' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:240:in require' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:240:inblock in require' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:225:in load_dependency' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:240:inrequire' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:348:in require_or_load' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:302:independ_on' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:214:in require_dependency' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/engine.rb:417:inblock (2 levels) in eager_load!' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/engine.rb:416:in each' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/engine.rb:416:inblock in eager_load!' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/engine.rb:414:in each' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/engine.rb:414:ineager_load!' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/application/finisher.rb:51:in block in <module:Finisher>' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/initializable.rb:30:ininstance_exec' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/initializable.rb:30:in run' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/initializable.rb:55:inblock in run_initializers' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/initializable.rb:54:in each' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/initializable.rb:54:inrun_initializers' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/application.rb:96:in initialize!' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/railtie/configurable.rb:30:inmethod_missing' from /app/config/environment.rb:5:in <top (required)>' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:240:inrequire' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:240:in block in require' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:223:inblock in load_dependency' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:640:in new_constants_in' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:223:inload_dependency' from /app/.bundle/gems/ruby/1.9.1/gems/activesupport-3.1.1/lib/active_support/dependencies.rb:240:in require' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/application.rb:83:inrequire_environment!' from /app/.bundle/gems/ruby/1.9.1/gems/railties-3.1.1/lib/rails/commands.rb:39:in <top (required)>' from script/rails:6:inrequire' from script/rails:6:in `'