diff --git a/app/controllers/managements_controller.rb b/app/controllers/managements_controller.rb
index a3048ac1..c4bfeb3f 100644
--- a/app/controllers/managements_controller.rb
+++ b/app/controllers/managements_controller.rb
@@ -1746,7 +1746,7 @@ end
 
   # 删除
   def delete_applied_departments
-    transaction do
+    ActiveRecord::Base.transaction do
       applied_department = ApplyAddDepartment.find params[:depart_id]
       applied_message = AppliedMessage.where(:applied_id => applied_department.id, :applied_type => "ApplyAddDepartment")
       applied_message.update_all(:status => 3)
diff --git a/app/helpers/ec_major_schools_helper.rb b/app/helpers/ec_major_schools_helper.rb
index 512e1cef..d4e34219 100644
--- a/app/helpers/ec_major_schools_helper.rb
+++ b/app/helpers/ec_major_schools_helper.rb
@@ -9,9 +9,9 @@ module EcMajorSchoolsHelper
 
     subitem_ids = ec_year.ec_graduation_subitems.reorder(nil).pluck(:id)
 
-    relations = EcGraduationRequirementCalculation.joins(ec_course_support: :ec_graduation_subitem_courses).where('ec_graduation_subitem_id in (?)', subitem_ids)
+    relations = EcGraduationRequirementCalculation.joins(ec_course_support: :ec_graduation_subitem_courses).where('ec_graduation_subitem_courses.ec_graduation_subitem_id in (?)', subitem_ids)
 
-    reached_map = relations.where(status: true).group('ec_graduation_subitem_id').count
+    reached_map = relations.where(status: true).group('ec_graduation_subitem_courses.ec_graduation_subitem_id').count
 
     reached_map.keys.size
   end
diff --git a/app/models/competition_team.rb b/app/models/competition_team.rb
index e2551710..a8f48b3e 100644
--- a/app/models/competition_team.rb
+++ b/app/models/competition_team.rb
@@ -11,7 +11,8 @@ class CompetitionTeam < ActiveRecord::Base
   # attr_accessible :invite_code, :name, :team_type
 
   def teacher
-    User.where(:id => self.teacher_id).first
+    teacher_id = self.teachers.first&.user_id
+    User.where(id: teacher_id).first
   end
 
   def group_members
diff --git a/app/views/layouts/_logined_header.html.erb b/app/views/layouts/_logined_header.html.erb
index e171b517..3e57fce3 100644
--- a/app/views/layouts/_logined_header.html.erb
+++ b/app/views/layouts/_logined_header.html.erb
@@ -25,7 +25,7 @@
         <img class="roundedRectangles" src="/images/educoder/roundedRectangle.png"/>
       </li>
       <li class="<%= params[:controller] == "libraries" ? " active" : "" %>"><%= link_to "教学案例", libraries_path %></li>
-      <li class="<%= params[:controller] == "project_packages" ? " active" : "" %>"><%= link_to "众包创新", project_packages_path %></li>
+<!--      <li class="<%#= params[:controller] == "project_packages" ? " active" : "" %>"><%#= link_to "众包创新", project_packages_path %></li>-->
       <li class="<%= params[:controller] == "forums" ? " active" : "" %>"><%= link_to "交流问答", forums_path %></li>
       <% if User.current.ec_school.present? %>
         <li class="<%= ecs_controller.include?(params[:controller]) ? " active" : "" %>" id="ec_banner">
diff --git a/app/views/layouts/_unlogin_header.html.erb b/app/views/layouts/_unlogin_header.html.erb
index 9875099d..b968b50e 100644
--- a/app/views/layouts/_unlogin_header.html.erb
+++ b/app/views/layouts/_unlogin_header.html.erb
@@ -27,7 +27,7 @@
         <img class="roundedRectangles" src="/images/educoder/roundedRectangle.png"/>
       </li>
       <li class="<%= params[:controller] == "libraries" ? " active" : "" %>"><%= link_to "教学案例", libraries_path %></li>
-      <li class="<%= params[:controller] == "project_packages" ? " active" : "" %>"><%= link_to "众包创新", project_packages_path %></li>
+<!--      <li class="<%#= params[:controller] == "project_packages" ? " active" : "" %>"><%#= link_to "众包创新", project_packages_path %></li>-->
       <li class="<%= params[:controller] == "forums" ? " active" : "" %>"><%= link_to "交流问答", forums_path %></li>
       <!--<li><%#= link_to "活动竞赛", competitions_path %></li>-->
     </ul>
diff --git a/public/react/src/modules/tpm/NewHeader.js b/public/react/src/modules/tpm/NewHeader.js
index 7d938057..e4cfd6cf 100644
--- a/public/react/src/modules/tpm/NewHeader.js
+++ b/public/react/src/modules/tpm/NewHeader.js
@@ -403,11 +403,11 @@ class NewHeader extends Component {
 
 											  <li><a href="/moop_cases">教学案例</a></li>
 
-										  	<li className={`${crowdsourcing === true ? 'active' : ''}`} style={{display:project_packages_url===null||project_packages_url===undefined||project_packages_url===""?'none':'block'}} >
-													<a href="/crowdsourcing">
-														{project_packages_url===null||project_packages_url===undefined||project_packages_url===""?'':'众包创新'}
-													</a>
-										  	</li>
+										  	{/*<li className={`${crowdsourcing === true ? 'active' : ''}`} style={{display:project_packages_url===null||project_packages_url===undefined||project_packages_url===""?'none':'block'}} >*/}
+													{/*<a href="/crowdsourcing">*/}
+														{/*{project_packages_url===null||project_packages_url===undefined||project_packages_url===""?'':'众包创新'}*/}
+													{/*</a>*/}
+										  	{/*</li>*/}
                         <li className={`${activeForums === true ? 'active' : ''}`}><a href="/forums">交流问答</a></li>
                         <li className={`${activeCourses === true ? 'active' : ''}`} style={{display:ecUrl===null||ecUrl===undefined||ecUrl===""?'none':'block'}}><a href={ecUrl}>{ecUrl===null||ecUrl===undefined||ecUrl===""?'':'工程认证'}</a></li>
                     </ul>