edit error, please help to check it.
An ActionView::Template::Error occurred in issues#show:
undefined method `<<' for nil:NilClass
plugins/redmine_issue_dynamic_edit/lib/details_issue_hooks.rb:129:in `view_issues_show_details_bottom'
-------------------------------
Request:
-------------------------------
* URL : http://192.168.1.41/issues/10329
* HTTP Method: GET
* IP address : 192.168.60.249
* Parameters : {"controller"=>"issues", "action"=>"show", "id"=>"10329"}
* Timestamp : 2017-08-28 07:39:11 UTC
* Server : jira
* Rails root : /opt/redmine-3.3
* Process: 17144
-------------------------------
Session:
-------------------------------
* session id: nil
* data: {}
-------------------------------
Environment:
-------------------------------
* GATEWAY_INTERFACE : CGI/1.2
* HTTP_ACCEPT : text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
* HTTP_ACCEPT_ENCODING : gzip, deflate, sdch
* HTTP_ACCEPT_LANGUAGE : zh-CN,zh;q=0.8
* HTTP_CONNECTION : keep-alive
* HTTP_HOST : 192.168.1.41
* HTTP_UPGRADE_INSECURE_REQUESTS : 1
* HTTP_USER_AGENT : Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36
* HTTP_VERSION : HTTP/1.1
* ORIGINAL_FULLPATH : /issues/10329
* ORIGINAL_SCRIPT_NAME :
* PATH_INFO : /issues/10329
* QUERY_STRING :
* REMOTE_ADDR : 192.168.60.249
* REQUEST_METHOD : GET
* REQUEST_PATH : /issues/10329
* REQUEST_URI : /issues/10329
* ROUTES_44094180_SCRIPT_NAME :
* SCRIPT_NAME :
* SERVER_NAME : 192.168.1.41
* SERVER_PORT : 80
* SERVER_PROTOCOL : HTTP/1.1
* SERVER_SOFTWARE : thin 1.7.0 codename Dunder Mifflin
* action_controller.instance : #<IssuesController:0x007fde3d9f1f50>
* action_dispatch.backtrace_cleaner : #<Rails::BacktraceCleaner:0x00000001abff08>
* action_dispatch.cookies : #<ActionDispatch::Cookies::CookieJar:0x007fde3dbaa220>
* action_dispatch.cookies_digest :
* action_dispatch.cookies_serializer :
* action_dispatch.encrypted_cookie_salt : encrypted cookie
* action_dispatch.encrypted_signed_cookie_salt : signed encrypted cookie
* action_dispatch.http_auth_salt : http authentication
* action_dispatch.key_generator : #<ActiveSupport::CachingKeyGenerator:0x0000000a66e928>
* action_dispatch.logger : #<ActiveSupport::Logger:0x000000053e73a8>
* action_dispatch.parameter_filter : [:password]
* action_dispatch.redirect_filter : []
* action_dispatch.remote_ip : 192.168.60.249
* action_dispatch.request.content_type :
* action_dispatch.request.formats : [#<Mime::Type:0x00000004171f70 @synonyms=["application/xhtml+xml"], @symbol=:html, @string="text/html", @hash=1358787599226879765>]
* action_dispatch.request.parameters : {"controller"=>"issues", "action"=>"show", "id"=>"10329"}
* action_dispatch.request.path_parameters : {:controller=>"issues", :action=>"show", :id=>"10329"}
* action_dispatch.request.query_parameters : {}
* action_dispatch.request.request_parameters : {}
* action_dispatch.request.unsigned_session_cookie: {}
* action_dispatch.request_id : c2a109bc-4317-4a40-a143-23418bb3df89
* action_dispatch.routes : #<ActionDispatch::Routing::RouteSet:0x0000000541a5c8>
* action_dispatch.secret_key_base : 59dda17a42803617f96151518b9aeecb94e132c6f140123f1982e1c8ae15d0103ffa854c4d8b0019
* action_dispatch.secret_token :
* action_dispatch.show_detailed_exceptions : false
* action_dispatch.show_exceptions : true
* action_dispatch.signed_cookie_salt : signed cookie
* async.callback : #<Method: Thin::Connection#post_process>
* async.close : #<EventMachine::DefaultDeferrable:0x007fde3dab08b0>
* rack.errors : #<IO:0x00000000c25588>
* rack.input : #<StringIO:0x007fde3dab13c8>
* rack.multiprocess : false
* rack.multithread : true
* rack.request.cookie_hash : {}
* rack.request.query_hash : {}
* rack.request.query_string :
* rack.run_once : false
* rack.session : #<ActionDispatch::Request::Session:0x007fde3da3d4f0>
* rack.session.options : #<ActionDispatch::Request::Session::Options:0x007fde3da3d4a0>
* rack.url_scheme : http
* rack.version : [1, 0]
-------------------------------
Backtrace:
-------------------------------
plugins/redmine_issue_dynamic_edit/lib/details_issue_hooks.rb:129:in `view_issues_show_details_bottom'
lib/redmine/hook.rb:61:in `block (2 levels) in call_hook'
lib/redmine/hook.rb:61:in `each'
lib/redmine/hook.rb:61:in `block in call_hook'
lib/redmine/hook.rb:58:in `tap'
lib/redmine/hook.rb:58:in `call_hook'
lib/redmine/hook.rb:96:in `call_hook'
plugins/redmine_workflow_hidden_fields/app/views/issues/show.html.erb:122:in `_443f56b6486a06f248042bb6cccebbb3'
plugins/redmine_spent_time_in_issue_description/lib/issues_controller_patch.rb:36:in `block (2 levels) in show_with_plugin'
plugins/redmine_spent_time_in_issue_description/lib/issues_controller_patch.rb:33:in `show_with_plugin'
lib/redmine/sudo_mode.rb:63:in `sudo_mode'