Hey guys…
i can’t connect to the rails 
But why? i have a problem with the LDAP Sync and want to stop it… but i can’t connect -.-
root@XXXXX:/home/administrator# zammad run rails c
/opt/zammad/vendor/bundle/ruby/2.4.0/gems/pg-0.21.0/lib/pg.rb:56:in `initialize': FATAL: remaining connection slots are reserved for non-replication superuser connections (PG::ConnectionBad)
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/pg-0.21.0/lib/pg.rb:56:in `new'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/pg-0.21.0/lib/pg.rb:56:in `connect'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/postgresql_adapter.rb:695:in `connect'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/postgresql_adapter.rb:220:in `initialize'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/postgresql_adapter.rb:38:in `new'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/postgresql_adapter.rb:38:in `postgresql_connection'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:759:in `new_connection'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:803:in `checkout_new_connection'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:782:in `try_to_checkout_new_connection'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:743:in `acquire_connection'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:500:in `checkout'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:374:in `connection'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:931:in `retrieve_connection'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_handling.rb:116:in `retrieve_connection'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activerecord-5.1.4/lib/active_record/connection_handling.rb:88:in `connection'
from /opt/zammad/config/initializers/db_preferences_postgresql.rb:9:in `<top (required)>'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:286:in `load'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:286:in `block in load'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:258:in `load_dependency'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:286:in `load'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/engine.rb:655:in `block in load_config_initializer'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/notifications.rb:168:in `instrument'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/engine.rb:654:in `load_config_initializer'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/engine.rb:612:in `block (2 levels) in <class:Engine>'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/engine.rb:611:in `each'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/engine.rb:611:in `block in <class:Engine>'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/initializable.rb:30:in `instance_exec'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/initializable.rb:30:in `run'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/initializable.rb:59:in `block in run_initializers'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:228:in `block in tsort_each'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:431:in `each_strongly_connected_component_from'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:421:in `block in each_strongly_connected_component_from'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/initializable.rb:48:in `each'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/initializable.rb:48:in `tsort_each_child'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:415:in `call'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:415:in `each_strongly_connected_component_from'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:349:in `block in each_strongly_connected_component'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:347:in `each'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:347:in `call'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:347:in `each_strongly_connected_component'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:226:in `tsort_each'
from /opt/zammad/vendor/ruby-2.4.2/lib/ruby/2.4.0/tsort.rb:205:in `tsort_each'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/initializable.rb:58:in `run_initializers'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/application.rb:353:in `initialize!'
from /opt/zammad/config/environment.rb:5:in `<top (required)>'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `require'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `block in require'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:258:in `load_dependency'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/activesupport-5.1.4/lib/active_support/dependencies.rb:292:in `require'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/application.rb:329:in `require_environment!'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/command/actions.rb:16:in `require_application_and_environment!'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/commands/console/console_command.rb:96:in `perform'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/thor-0.20.0/lib/thor/command.rb:27:in `run'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/thor-0.20.0/lib/thor/invocation.rb:126:in `invoke_command'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/thor-0.20.0/lib/thor.rb:387:in `dispatch'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/command/base.rb:63:in `perform'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/command.rb:44:in `invoke'
from /opt/zammad/vendor/bundle/ruby/2.4.0/gems/railties-5.1.4/lib/rails/commands.rb:16:in `<top (required)>'
from /opt/zammad/bin/rails:4:in `require'
from /opt/zammad/bin/rails:4:in `<main>'