Not working logstash 6.2.4

[ranvijayj]

2018-06-11T16:03:07,101][FATAL][logstash.runner ] An unexpected error occurred! {:error=>#<NameError: undefined local variable or methoddotfile' for #AwesomePrint::Inspector:0x3d5e072a
Did you mean? @@dotfile>, :backtrace=>["/opt/logstash-6.2.4/vendor/bundle/jruby/2.3.0/gems/awesome_print-1.8.0/lib/awesome_print/inspector.rb:163:in merge_custom_defaults!'", "/opt/logstash-6.2.4/vendor/bundle/jruby/2.3.0/gems/awesome_print-1.8.0/lib/awesome_print/inspector.rb:50:in initialize'", "/opt/logstash-6.2.4/vendor/bundle/jruby/2.3.0/gems/awesome_print-1.8.0/lib/awesome_print/core_ext/kernel.rb:9:in ai'", "/opt/logstash-6.2.4/vendor/bundle/jruby/2.3.0/gems/logstash-codec-rubydebug-3.0.5/lib/logstash/codecs/rubydebug.rb:39:in encode_default'", "org/jruby/RubyMethod.java:115:in call'", "/opt/logstash-6.2.4/vendor/bundle/jruby/2.3.0/gems/logstash-codec-rubydebug-3.0.5/lib/logstash/codecs/rubydebug.rb:35:in encode'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/codecs/base.rb:50:in block in multi_encode'", "org/jruby/RubyArray.java:1734:in each'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/codecs/base.rb:50:in multi_encode'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/outputs/base.rb:90:in multi_receive'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/output_delegator_strategies/single.rb:15:in block in multi_receive'", "org/jruby/ext/thread/Mutex.java:148:in synchronize'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/output_delegator_strategies/single.rb:14:in multi_receive'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/output_delegator.rb:49:in multi_receive'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/pipeline.rb:477:in block in output_batch'", "org/jruby/RubyHash.java:1343:in each'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/pipeline.rb:476:in output_batch'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/pipeline.rb:428:in worker_loop'", "/opt/logstash-6.2.4/logstash-core/lib/logstash/pipeline.rb:386:in block in start_workers'"]} [2018-06-11T16:03:07,179][ERROR][org.logstash.Logstash ] java.lang.IllegalStateException: org.jruby.exceptions.RaiseException: (SystemExit) exit