NoMethodError: undefined method `[]' for nil:NilClass
	/srv/apps/ui-annotator/gems/gems/application_insights-0.5.1/lib/application_insights/telemetry_client.rb:78:in `block in track_exception'
	/srv/apps/ui-annotator/gems/gems/application_insights-0.5.1/lib/application_insights/telemetry_client.rb:74:in `each'
	/srv/apps/ui-annotator/gems/gems/application_insights-0.5.1/lib/application_insights/telemetry_client.rb:74:in `track_exception'
	/srv/apps/ui-annotator/gems/gems/application_insights-0.5.1/lib/application_insights/rack/track_request.rb:57:in `call'
	/srv/apps/ui-annotator/gems/gems/appinsights-0.0.5/lib/appinsights/middlewares/exception_handling.rb:10:in `call'
	/srv/apps/ui-annotator/gems/gems/cuba-3.1.1/lib/cuba.rb:75:in `call'
	/var/lib/gems/2.1.0/gems/rack-1.6.0/lib/rack/lint.rb:49:in `_call'
	/var/lib/gems/2.1.0/gems/rack-1.6.0/lib/rack/lint.rb:37:in `call'
	/var/lib/gems/2.1.0/gems/rack-1.6.0/lib/rack/showexceptions.rb:24:in `call'
	/var/lib/gems/2.1.0/gems/rack-1.6.0/lib/rack/commonlogger.rb:33:in `call'
	/var/lib/gems/2.1.0/gems/shotgun-0.9/lib/shotgun/loader.rb:86:in `proceed_as_child'
	/var/lib/gems/2.1.0/gems/shotgun-0.9/lib/shotgun/loader.rb:31:in `call!'
	/var/lib/gems/2.1.0/gems/shotgun-0.9/lib/shotgun/loader.rb:18:in `call'
	/var/lib/gems/2.1.0/gems/shotgun-0.9/lib/shotgun/favicon.rb:12:in `call'
	/var/lib/gems/2.1.0/gems/shotgun-0.9/lib/shotgun/static.rb:14:in `call'
	/var/lib/gems/2.1.0/gems/rack-1.6.0/lib/rack/builder.rb:153:in `call'
	/var/lib/gems/2.1.0/gems/rack-1.6.0/lib/rack/handler/webrick.rb:89:in `service'
	/usr/lib/ruby/2.1.0/webrick/httpserver.rb:138:in `service'
	/usr/lib/ruby/2.1.0/webrick/httpserver.rb:94:in `run'
	/usr/lib/ruby/2.1.0/webrick/server.rb:295:in `block in start_thread'