Repository throwing 500 error after upgrading from 13.1.4-ee to 15.1.0-ee

Hi,
I have upgraded my gitlab instance from 13.1.4-ee to 15.1.0-ee. I am able to open all my other repositories that are available but whenever I open my main repository the gitlab throws the following error:
" 500

Whoops, something went wrong on our end.


Request ID: 01G85ZM07XT55BX1V6RSNCVBJA

Try refreshing the page, or going back and attempting the action again.

Please contact your GitLab administrator if this problem persists."

also here is the result for the gitlab-rails tail command:
"
Completed 500 Internal Server Error in 509ms (ActiveRecord: 26.3ms | Elasticsearch: 0.0ms | Allocations: 210759)

ActionView::Template::Error ():
2: - if sidebar_menu.menu_with_partial?
3: = render_if_exists sidebar_menu.menu_partial, **sidebar_menu.menu_partial_options
4: - else
5: = link_to sidebar_menu.link, **sidebar_menu.link_html_options, data: { qa_selector: ‘sidebar_menu_link’, qa_menu_item: sidebar_menu.title } do
6: - if sidebar_menu.icon_or_image?
7: %span.nav-icon-container
8: - if sidebar_menu.image_path

app/models/concerns/integrations/has_data_fields.rb:15:in url' app/models/integrations/jira.rb:212:in url’
app/models/integrations/jira.rb:183:in web_url' app/models/integrations/base_issue_tracker.rb:63:in issue_tracker_path’
lib/sidebars/projects/menus/external_issue_tracker_menu.rb:9:in link' app/views/shared/nav/_sidebar_menu.html.haml:5 app/helpers/tab_helper.rb:154:in nav_link’
app/views/shared/nav/_sidebar_menu.html.haml:1
app/views/shared/nav/_sidebar.html.haml:10
app/views/layouts/nav/sidebar/_project.html.haml:1
app/views/layouts/_page.html.haml:3
app/views/layouts/application.html.haml:15
app/views/layouts/project.html.haml:18
app/controllers/application_controller.rb:142:in render' app/controllers/application_controller.rb:578:in block in allow_gitaly_ref_name_caching’
lib/gitlab/gitaly_client.rb:321:in allow_ref_name_caching' app/controllers/application_controller.rb:577:in allow_gitaly_ref_name_caching’
ee/lib/gitlab/ip_address_state.rb:10:in with' ee/app/controllers/ee/application_controller.rb:45:in set_current_ip_address’
app/controllers/application_controller.rb:527:in set_current_admin' lib/gitlab/session.rb:11:in with_session’
app/controllers/application_controller.rb:518:in set_session_storage' lib/gitlab/i18n.rb:105:in with_locale’
lib/gitlab/i18n.rb:111:in with_user_locale' app/controllers/application_controller.rb:512:in set_locale’
app/controllers/application_controller.rb:506:in set_current_context' lib/gitlab/metrics/elasticsearch_rack_middleware.rb:16:in call’
lib/gitlab/middleware/memory_report.rb:13:in call' lib/gitlab/middleware/speedscope.rb:13:in call’
lib/gitlab/database/load_balancing/rack_middleware.rb:23:in call' lib/gitlab/middleware/rails_queue_duration.rb:33:in call’
lib/gitlab/metrics/rack_middleware.rb:16:in block in call' lib/gitlab/metrics/web_transaction.rb:46:in run’
lib/gitlab/metrics/rack_middleware.rb:16:in call' lib/gitlab/jira/middleware.rb:19:in call’
lib/gitlab/middleware/go.rb:20:in call' lib/gitlab/etag_caching/middleware.rb:21:in call’
lib/gitlab/middleware/query_analyzer.rb:11:in block in call' lib/gitlab/database/query_analyzer.rb:37:in within’
lib/gitlab/middleware/query_analyzer.rb:11:in call' lib/gitlab/middleware/multipart.rb:173:in call’
lib/gitlab/middleware/read_only/controller.rb:50:in call' lib/gitlab/middleware/read_only.rb:18:in call’
lib/gitlab/middleware/same_site_cookies.rb:27:in call' lib/gitlab/middleware/handle_malformed_strings.rb:21:in call’
lib/gitlab/middleware/basic_health_check.rb:25:in call' lib/gitlab/middleware/handle_ip_spoof_attack_error.rb:25:in call’
lib/gitlab/middleware/request_context.rb:21:in call' lib/gitlab/middleware/webhook_recursion_detection.rb:15:in call’
config/initializers/fix_local_cache_middleware.rb:11:in call' lib/gitlab/middleware/compressed_json.rb:26:in call’
lib/gitlab/middleware/rack_multipart_tempfile_factory.rb:19:in call' lib/gitlab/middleware/sidekiq_web_static.rb:20:in call’
lib/gitlab/metrics/requests_rack_middleware.rb:77:in call' lib/gitlab/middleware/release_env.rb:13:in call’
"