We installed the latest version and we get the following error even after db migrations (redmine 4.1.1)

 Rendering issues/show.html.erb within layouts/base
  Rendered issues/_action_menu.html.erb (1.9ms)
  Rendered plugins/redmine_agile/app/views/issues/_issue_story_points.html.erb (2.2ms)
  Rendered plugins/redmine_agile/app/views/issues/_issue_sprint.html.erb (0.2ms)
  Rendered plugins/redmine_agile/app/views/issues/_agile_data_labels.html.erb (5.1ms)
  Rendered plugins/redmine_reporter/app/views/issues/_reports_link.html.erb (0.2ms)
  Rendered plugins/redmine_reporter/app/views/issues/_show_details_bottom.html.erb (0.8ms)
  Rendered plugins/redmineup_tags/app/views/issues/_tags.html.erb (2.2ms)
  Rendered plugins/redmine_contacts_helpdesk/app/views/issues/_ticket_data.html.erb (0.6ms)
  Rendered plugins/redmine_products/app/views/products_issues/_products.html.erb (0.2ms)
  Rendered plugins/redmine_contacts/app/views/deals_issues/_show.html.erb (6.4ms)
  Rendered issues/show.html.erb within layouts/base (52.1ms)
Completed 500 Internal Server Error in 282ms (ActiveRecord: 35.6ms)

ActionView::Template::Error (undefined method `deal' for #<Issue:0x000000000a70e9c8>
Did you mean?  deals):
    1: <% if issue && issue.deal && issue.deal.visible? %>
    2:          <%= issue_fields_rows do |rows|
    3:                  rows.left l(:label_deal), deal_tag(issue.deal).html_safe
    4:          end%>

plugins/redmine_contacts/app/views/deals_issues/_show.html.erb:1:in `_plugins_redmine_contacts_app_views_deals_issues__show_html_erb___2864328695921214626_95541160'
lib/redmine/hook/view_listener.rb:61:in `block (2 levels) in render_on'
lib/redmine/hook/view_listener.rb:59:in `map'
lib/redmine/hook/view_listener.rb:59:in `block in render_on'
lib/redmine/hook.rb:63:in `block (2 levels) in call_hook'
lib/redmine/hook.rb:63:in `each'
lib/redmine/hook.rb:63:in `block in call_hook'
lib/redmine/hook.rb:60:in `tap'
lib/redmine/hook.rb:60:in `call_hook'
lib/redmine/hook.rb:98:in `call_hook'
app/views/issues/show.html.erb:75:in `_app_views_issues_show_html_erb__1079782876594146576_93513400'
app/controllers/issues_controller.rb:107:in `block (2 levels) in show'
app/controllers/issues_controller.rb:99:in `show'
lib/redmine/sudo_mode.rb:65:in `sudo_mode'