To-Do List page get 500 error

Summary

Every user on our self-hosted instance gets 500 error when click To-Do List page

Steps to reproduce

Nothing to do.it happens since we updated 15.7.5 version of gitlab-ce.

What is the current bug behavior?

Can't see To-Do list page.

All pages it normal, except the to-do list:

500

Whoops, something went wrong on our end.

Screenshot

What is the expected correct behavior?

Able to see To-Do list page.

Relevant logs and/or screenshots

gitlab-rails/production.log

{"method":"GET","path":"/dashboard/todos","format":"html","controller":"Dashboard::TodosController","action":"index","status":500,"time":"2023-01-30T08:07:40.503Z","params":[],"correlation_id":"01GR0VFBGHV1GQPY8Q0N2X0RTH","meta.caller_id":"Dashboard::TodosController#index","meta.remote_ip":"#ourremoteip","meta.feature_category":"team_planning","meta.user":"#username","meta.user_id":62,"meta.client_id":"user/62","remote_ip":"#ourremoteip","user_id":62,"username":"#username","ua":"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.1 Safari/605.1.15","request_urgency":"low","target_duration_s":5,"cf_ray":"7918b71cb956ba8b-MXP","redis_calls":12,"redis_allowed_cross_slot_calls":1,"redis_duration_s":0.002653,"redis_read_bytes":1328,"redis_write_bytes":44776,"redis_cache_calls":7,"redis_cache_duration_s":0.001937,"redis_cache_read_bytes":1044,"redis_cache_write_bytes":43567,"redis_sessions_calls":4,"redis_sessions_allowed_cross_slot_calls":1,"redis_sessions_duration_s":0.000542,"redis_sessions_read_bytes":284,"redis_sessions_write_bytes":1155,"redis_shared_state_calls":1,"redis_shared_state_duration_s":0.000174,"redis_shared_state_write_bytes":54,"db_count":30,"db_write_count":0,"db_cached_count":3,"db_replica_count":0,"db_primary_count":30,"db_main_count":30,"db_main_replica_count":0,"db_replica_cached_count":0,"db_primary_cached_count":3,"db_main_cached_count":3,"db_main_replica_cached_count":0,"db_replica_wal_count":0,"db_primary_wal_count":0,"db_main_wal_count":0,"db_main_replica_wal_count":0,"db_replica_wal_cached_count":0,"db_primary_wal_cached_count":0,"db_main_wal_cached_count":0,"db_main_replica_wal_cached_count":0,"db_replica_duration_s":0.0,"db_primary_duration_s":0.079,"db_main_duration_s":0.079,"db_main_replica_duration_s":0.0,"cpu_s":0.165322,"mem_objects":69701,"mem_bytes":6579206,"mem_mallocs":26675,"mem_total_bytes":9367246,"pid":579939,"worker_id":"puma_3","rate_limiting_gates":[],"exception.class":"ActionView::Template::Error","exception.message":"undefined method `name' for nil:NilClass","exception.backtrace":["app/helpers/todos_helper.rb:62:in `todo_parent_path'","app/views/dashboard/todos/_todo.html.haml:15","app/views/dashboard/todos/index.html.haml:82","app/controllers/application_controller.rb:142:in `render'","app/controllers/application_controller.rb:533:in `set_current_admin'","lib/gitlab/session.rb:11:in `with_session'","app/controllers/application_controller.rb:524:in `set_session_storage'","lib/gitlab/i18n.rb:107:in `with_locale'","lib/gitlab/i18n.rb:113: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/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/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:37: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'"],"db_duration_s":0.02346,"view_duration_s":0.0,"duration_s":0.15263}

Output of checks

Results of GitLab environment info

Gitlab-ce 15.7.5 docker installation

Expand for output related to GitLab environment info

System information
System:
Current User:	git
Using RVM:	no
Ruby Version:	2.7.7p221
Gem Version:	3.1.6
Bundler Version:2.3.15
Rake Version:	13.0.6
Redis Version:	6.2.8
Sidekiq Version:6.5.7
Go Version:	unknown

GitLab information
Version:	15.7.5
Revision:	358d690d91c
Directory:	/opt/gitlab/embedded/service/gitlab-rails
DB Adapter:	PostgreSQL
DB Version:	13.8
URL:		http://repo.bulutmd.com
HTTP Clone URL:	http://repo.bulutmd.com/some-group/some-project.git
SSH Clone URL:	git@repo.bulutmd.com:some-group/some-project.git
Using LDAP:	no
Using Omniauth:	yes
Omniauth Providers:

GitLab Shell
Version:	14.14.0
Repository storages:
- default: 	unix:/var/opt/gitlab/gitaly/gitaly.socket
GitLab Shell path:		/opt/gitlab/embedded/service/gitlab-shell

Results of GitLab application Check

Expand for output related to the GitLab application check

Checking GitLab subtasks ...
Checking GitLab Shell ...
GitLab Shell: ... GitLab Shell version >= 14.14.0 ? ... OK (14.14.0)
Running /opt/gitlab/embedded/service/gitlab-shell/bin/check
Internal API available: OK
Redis available via internal API: OK
gitlab-shell self-check successful
Checking GitLab Shell ... Finished
Checking Gitaly ...
Gitaly: ... default ... OK
Checking Gitaly ... Finished
Checking Sidekiq ...
Sidekiq: ... Running? ... yes
Number of Sidekiq processes (cluster/worker) ... 1/1
Checking Sidekiq ... Finished
Checking Incoming Email ...
Incoming Email: ... Reply by email is disabled in config/gitlab.yml
Checking Incoming Email ... Finished
Checking LDAP ...
LDAP: ... LDAP is disabled in config/gitlab.yml
Checking LDAP ... Finished
Checking GitLab App ...
Database config exists? ... yes
All migrations up? ... yes
Database contains orphaned GroupMembers? ... no
GitLab config exists? ... yes
GitLab config up to date? ... yes
Cable config exists? ... yes
Resque config exists? ... yes
Log directory writable? ... yes
Tmp directory writable? ... yes
Uploads directory exists? ... yes
Uploads directory has correct permissions? ... yes
Uploads directory tmp has correct permissions? ... yes
Systemd unit files or init script exist? ... skipped (omnibus-gitlab has neither init script nor systemd units)
Systemd unit files or init script up-to-date? ... skipped (omnibus-gitlab has neither init script nor systemd units)
Projects have namespace: ...
165/1 ... yes
154/3 ... yes
163/4 ... yes
162/5 ... yes
140/6 ... yes
11/7 ... yes
14/8 ... yes
14/9 ... yes
154/10 ... yes
154/11 ... yes
154/12 ... yes
154/13 ... yes
154/14 ... yes
14/15 ... yes
150/17 ... yes
164/18 ... yes
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159/21 ... yes
128/22 ... yes
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154/26 ... yes
154/28 ... yes
134/29 ... yes
14/30 ... yes
9/31 ... yes
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11/35 ... yes
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128/38 ... yes
14/39 ... yes
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155/42 ... yes
128/43 ... yes
128/44 ... yes
14/45 ... yes
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154/47 ... yes
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8/50 ... yes
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150/52 ... yes
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150/64 ... yes
128/65 ... yes
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14/68 ... yes
26/69 ... yes
128/70 ... yes
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597/453 ... yes
193/455 ... yes
639/456 ... yes
Redis version >= 6.0.0? ... yes
Ruby version >= 2.7.2 ? ... yes (2.7.7)
Git user has default SSH configuration? ... yes
Active users: ... 38
Is authorized keys file accessible? ... yes
GitLab configured to store new projects in hashed storage? ... yes
All projects are in hashed storage? ... yes
Checking GitLab App ... Finished
Checking GitLab subtasks ... Finished