diff --git a/app/controllers/smart_annotations_controller.rb b/app/controllers/smart_annotations_controller.rb
index 1ec2abf68..3ab743b75 100644
--- a/app/controllers/smart_annotations_controller.rb
+++ b/app/controllers/smart_annotations_controller.rb
@@ -27,9 +27,9 @@ class SmartAnnotationsController < ApplicationController
       avatar_url: user_avatar_absolute_url(resource, :thumb),
       info: I18n.t(
         'atwho.users.popover_html',
-        role: user_team_assignment.user_role.name.capitalize,
-        team: user_team_assignment.assignable.name,
-        time: I18n.l(user_team_assignment.created_at, format: :full_date)
+        role: user_team_assignment ? user_team_assignment.user_role.name.capitalize : '/',
+        team: user_team_assignment ? user_team_assignment.assignable.name : I18n.t('atwho.users.not_in_this_team'),
+        time: user_team_assignment ? I18n.l(user_team_assignment.created_at, format: :full_date) : '/'
       )
     }
   end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 5c9689ecd..357c37c67 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -3937,7 +3937,7 @@ en:
           title: 'Insert custom well plate'
           name_label: 'Well plate name'
           name_placeholder: 'Plate'
-          dimension_label: 'Dimensions (rows x columns)' 
+          dimension_label: 'Dimensions (rows x columns)'
       options:
         up_arrow_title: "Move step up"
         down_arrow_title: "Move step down"
@@ -4227,6 +4227,7 @@ en:
       title: "People"
       header: "Type the name or email of the user you want to mention (they will be notified)"
       help: "Navigate: ↑ ↓    •    Insert: Enter / Tab    •    Dismiss: Esc"
+      not_in_this_team: 'Not in this team'
       popover_html: "<span class='silver'>Team:</span>&nbsp;%{team} <br> <span class='silver'>Role:</span>&nbsp;%{role} <br> <span class='silver'>Joined:</span>&nbsp;%{time}"
     res:
       archived: "(archived)"