Access denied for user 'root'@'localhost' (using password: YES) (Mysql2::Error)

Want to consult on the below error message:

Ruby (Rack) application could not be started

These are the possible causes:

There may be a syntax error in the application's code. Please check for such errors and fix them.

A required library may not installed. Please install all libraries that this application requires.

The application may not be properly configured. Please check whether all configuration files are written correctly, fix any incorrect configurations, and restart this application.

A service that the application relies on (such as the database server or the Ferret search engine server) may not have been started. Please start that service.

Further information about the error may have been written to the application's log file. Please check it in order to analyse the problem.

Error message:

Access denied for user 'root'@'localhost' (using password: YES) (Mysql2::Error) Exception class: PhusionPassenger::UnknownError Application root: /usr/local/sipfish/webui Backtrace:

File Line Location

0 /usr/lib64/ruby/gems/1.9.1/gems/mysql2-0.3.11/lib/mysql2/client.rb 44 in connect' 1 /usr/lib64/ruby/gems/1.9.1/gems/mysql2-0.3.11/lib/mysql2/client.rb 44 ininitialize' 2 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/mysql2_adapter.rb 17 in new' 3 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/mysql2_adapter.rb 17 inmysql2_connection' 4 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_pool.rb 304 in new_connection' 5 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_pool.rb 323 incheckout_new_connection' 6 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_pool.rb 265 in block (2 levels) in checkout' 7 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_pool.rb 261 inloop' 8 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_pool.rb 261 in block in checkout' 9 /usr/lib64/ruby/1.9.1/monitor.rb 211 inmon_synchronize' 10 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_pool.rb 260 in checkout' 11 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_pool.rb 162 inconnection' 12 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_pool.rb 409 in retrieve_connection' 13 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_specification.rb 115 inretrieve_connection' 14 /usr/lib64/ruby/gems/1.9.1/gems/activerecord-3.1.12/lib/active_record/connection_adapters/abstract/connection_specification.rb 89 in connection' 15 /usr/local/sipfish/webui/config/initializers/verify_voip_phone_parity.rb 1 in' 16 /usr/lib64/ruby/gems/1.9.1/gems/activesupport-3.1.12/lib/active_support/dependencies.rb 234 in load' 17 /usr/lib64/ruby/gems/1.9.1/gems/activesupport-3.1.12/lib/active_support/dependencies.rb 234 inblock in load' 18 /usr/lib64/ruby/gems/1.9.1/gems/activesupport-3.1.12/lib/active_support/dependencies.rb 225 in load_dependency' 19 /usr/lib64/ruby/gems/1.9.1/gems/activesupport-3.1.12/lib/active_support/dependencies.rb 234 inload' 20 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/engine.rb 556 in block (2 levels) in ' 21 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/engine.rb 555 ineach' 22 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/engine.rb 555 in block in ' 23 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/initializable.rb 30 ininstance_exec' 24 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/initializable.rb 30 in run' 25 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/initializable.rb 55 inblock in run_initializers' 26 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/initializable.rb 54 in each' 27 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/initializable.rb 54 inrun_initializers' 28 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/application.rb 96 in initialize!' 29 /usr/lib64/ruby/gems/1.9.1/gems/railties-3.1.12/lib/rails/railtie/configurable.rb 30 inmethod_missing' 30 /usr/local/sipfish/webui/config/environment.rb 5 in ' 31 config.ru 3 inrequire' 32 config.ru 3 in block in ' 33 /usr/lib64/ruby/gems/1.9.1/gems/rack-1.3.10/lib/rack/builder.rb 51 ininstance_eval' 34 /usr/lib64/ruby/gems/1.9.1/gems/rack-1.3.10/lib/rack/builder.rb 51 in initialize' 35 config.ru 1 innew' 36 config.ru 1 in ' 37 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/application_spawner.rb 225 ineval' 38 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/application_spawner.rb 225 in load_rack_app' 39 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/application_spawner.rb 157 inblock in initialize_server' 40 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/utils.rb 572 in report_app_init_status' 41 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/application_spawner.rb 154 ininitialize_server' 42 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server.rb 204 in start_synchronously' 43 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server.rb 180 instart' 44 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/rack/application_spawner.rb 129 in start' 45 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb 253 inblock (2 levels) in spawn_rack_application' 46 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server_collection.rb 132 in lookup_or_add' 47 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb 246 inblock in spawn_rack_application' 48 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server_collection.rb 82 in block in synchronize' 49 prelude> 10:insynchronize' 50 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server_collection.rb 79 in synchronize' 51 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb 244 inspawn_rack_application' 52 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb 137 in spawn_application' 53 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/spawn_manager.rb 275 inhandle_spawn_application' 54 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server.rb 357 in server_main_loop' 55 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11/lib/phusion_passenger/abstract_server.rb 206 instart_synchronously' 56 /usr/lib64/ruby/gems/1.9.1/gems/passenger-3.0.11//helper-scripts/passenger-spawn-server 99 in ` '