有人可以帮我理解这个错误吗？无法弄清楚如何搭便车，它正在停止我所有的延迟工作......
heroku rake jobs:work --app thehockeycommunity --trace
** Execute jobs:work
[Worker(host:8e8e4caf-9879-4fd7-94c5-d22d866c5720 pid:4)] New Relic Ruby Agent Monitoring DJ worker host:8e8e4caf-9879-4fd7-94c5-d22d866c5720 pid:4
[Worker(host:8e8e4caf-9879-4fd7-94c5-d22d866c5720 pid:4)] Starting job worker
rake aborted!
syntax error on line 2874, col 3: `'
/usr/ruby1.8.7/lib/ruby/1.8/yaml.rb:133:in `load'
/usr/ruby1.8.7/lib/ruby/1.8/yaml.rb:133:in `load'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/backend/base.rb:103:in `deserialize'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/backend/base.rb:69:in `payload_object'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/backend/base.rb:55:in `name'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:165:in `handle_failed_job'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:128:in `run'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:173:in `reserve_and_run_one_job'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:106:in `work_off'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:105:in `times'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:105:in `work_off'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:80:in `start'
/usr/ruby1.8.7/lib/ruby/1.8/benchmark.rb:308:in `realtime'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:79:in `start'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:76:in `loop'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/worker.rb:76:in `start'
/app/.bundle/gems/ruby/1.8/gems/delayed_job-2.0.7/lib/delayed/tasks.rb:13
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `call'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:205:in `execute'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `each'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:200:in `execute'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:158:in `invoke_with_call_chain'
/usr/ruby1.8.7/lib/ruby/1.8/monitor.rb:242:in `synchronize'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:151:in `invoke_with_call_chain'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/task.rb:144:in `invoke'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:116:in `invoke_task'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `top_level'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `each'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:94:in `top_level'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:88:in `top_level'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:66:in `run'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:133:in `standard_exception_handling'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/lib/rake/application.rb:63:in `run'
/app/.bundle/gems/ruby/1.8/gems/rake-0.9.2.2/bin/rake:33
/app/.bundle/gems/ruby/1.8/bin/rake:19:in `load'
/app/.bundle/gems/ruby/1.8/bin/rake:19
Tasks: TOP => jobs:work
new-host-4:The-Hockey-Community alextoul$