Rails server is not start

=> Booting Puma
=> Rails 4.2.1 application starting in development on
http://localhost:3000
=> Run rails server -h for more startup options
=> Ctrl-C to shutdown server
[30310] Puma starting in cluster mode…
[30310] * Version 3.8.0 (ruby 2.2.2-p95), codename: Sassy Salamander
[30310] * Min threads: 1, max threads: 6
[30310] * Environment: development
[30310] * Process workers: 2
[30310] * Phased restart available
[30310] * Listening on tcp://localhost:3000
[30310] Use Ctrl-C to stop
Exiting
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/puma-3.8.0/lib/puma/runner.rb:111:in
redirect_io': Cannot redirect STDOUT to /home/yactraq-vm06/applications/shared/log/puma.stdout.log (RuntimeError) from /usr/local/rvm/gems/ruby-2.2.2@applications/gems/puma-3.8.0/lib/puma/cluster.rb:45:in redirect_io’
from
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/puma-3.8.0/lib/puma/cluster.rb:435:in
run' from /usr/local/rvm/gems/ruby-2.2.2@applications/gems/puma-3.8.0/lib/puma/launcher.rb:172:in run’
from
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/puma-3.8.0/lib/rack/handler/puma.rb:64:in
run' from /usr/local/rvm/gems/ruby-2.2.2@applications/gems/rack-1.6.5/lib/rack/server.rb:286:in start’
from
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/railties-4.2.1/lib/rails/commands/server.rb:80:in
start' from /usr/local/rvm/gems/ruby-2.2.2@applications/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:80:in block in server’
from
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:75:in
tap' from /usr/local/rvm/gems/ruby-2.2.2@applications/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:75:in server’
from
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:39:in
run_command!' from /usr/local/rvm/gems/ruby-2.2.2@applications/gems/railties-4.2.1/lib/rails/commands.rb:17:in <top (required)>’
from /home/yactraq-vm06/applications/bin/rails:8:in require' from /home/yactraq-vm06/applications/bin/rails:8:in <top
(required)>’
from
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/spring-2.0.1/lib/spring/client/rails.rb:28:in
load' from /usr/local/rvm/gems/ruby-2.2.2@applications/gems/spring-2.0.1/lib/spring/client/rails.rb:28:in call’
from
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/spring-2.0.1/lib/spring/client/command.rb:7:in
call' from /usr/local/rvm/gems/ruby-2.2.2@applications/gems/spring-2.0.1/lib/spring/client.rb:30:in run’
from
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/spring-2.0.1/bin/spring:49:in
<top (required)>' from /usr/local/rvm/gems/ruby-2.2.2@applications/gems/spring-2.0.1/lib/spring/binstub.rb:31:in load’
from
/usr/local/rvm/gems/ruby-2.2.2@applications/gems/spring-2.0.1/lib/spring/binstub.rb:31:in
<top (required)>' from /home/yactraq-vm06/applications/bin/spring:16:in require’
from /home/yactraq-vm06/applications/bin/spring:16:in <top (required)>' from bin/rails:3:in load’
from bin/rails:3:in `’