Upgrade from 7.3 to 7.4 loads the dashboard page to 500

Though upgrade dint had any issues.

But accessing UI goes to 500 page.

production.log shows the below error as my page loads.

Started GET “/” for 182.74.39.146 at 2017-11-08 11:42:21 +0100
Processing by DashboardController#show as HTML
Mysql2::Error: Table ‘gitlabhq_production.users_groups’ doesn’t exist: SELECT projects.id FROM projects INNER JOIN namespaces ON projects.namespace_id = namespaces.id INNER JOIN users_groups ON namespaces.id = users_groups.group_id WHERE namespaces.type IN (‘Group’) AND users_groups.user_id = 161
Completed 500 Internal Server Error in 16ms

ActiveRecord::StatementInvalid (Mysql2::Error: Table ‘gitlabhq_production.users_groups’ doesn’t exist: SELECT projects.id FROM projects INNER JOIN namespaces ON projects.namespace_id = namespaces.id INNER JOIN users_groups ON namespaces.id = users_groups.group_id WHERE namespaces.type IN (‘Group’) AND users_groups.user_id = 161):
app/models/user.rb:284:in authorized_projects' app/controllers/dashboard_controller.rb:77:in load_projects’

DB upgrade log –
root@trac-clone:/home/git/gitlab# sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production
sudo: unable to resolve host trac-clone.b2xcare.com
== 20140914113604 AddMembersTable: migrating ==================================
– create_table(:members)
-> 0.5810s
– add_index(:members, :type)
-> 0.0825s
– add_index(:members, :user_id)
-> 0.1588s
– add_index(:members, :access_level)
-> 0.0126s
– add_index(:members, [:source_id, :source_type])
-> 0.0269s
== 20140914113604 AddMembersTable: migrated (0.8632s) =========================

== 20140914145549 MigrateToNewMembersModel: migrating =========================
– execute(“INSERT INTO members ( user_id, source_id, source_type, access_level, notification_level, type ) SELECT user_id, group_id, ‘Namespace’, group_access, notification_level, ‘GroupMember’ FROM users_groups”)
-> 0.0271s
– execute(“INSERT INTO members ( user_id, source_id, source_type, access_level, notification_level, type ) SELECT user_id, project_id, ‘Project’, project_access, notification_level, ‘ProjectMember’ FROM users_projects”)
-> 0.0845s
== 20140914145549 MigrateToNewMembersModel: migrated (0.1121s) ================

== 20140914173417 RemoveOldMemberTables: migrating ============================
– drop_table(:users_groups)
-> 0.0382s
– drop_table(:users_projects)
-> 0.0131s
== 20140914173417 RemoveOldMemberTables: migrated (0.0518s) ===================

== 20141006143943 MoveSlackServiceToWebhook: migrating ========================
== 20141006143943 MoveSlackServiceToWebhook: migrated (0.0091s) ===============

== 20141007100818 AddVisibilityLevelToSnippet: migrating ======================
– add_column(:snippets, :visibility_level, :integer, {:default=>0, :null=>false})
-> 0.0981s
– add_index(:snippets, :visibility_level)
-> 0.0227s
– remove_column(:snippets, :private)
-> 0.0703s
== 20141007100818 AddVisibilityLevelToSnippet: migrated (0.2590s) =============


root@trac-clone:/home/git/gitlab# sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production
sudo: unable to resolve host trac-clone.b2xcare.com

System information
System: Ubuntu 12.04
Current User: git
Using RVM: no
Ruby Version: 2.1.2p95
Gem Version: 2.2.2
Bundler Version:1.16.0
Rake Version: 10.3.2
Sidekiq Version:2.17.0

GitLab information
Version: 7.4.5
Revision: 19d572e
Directory: /home/git/gitlab
DB Adapter: mysql2
URL: https://gitdev.b2xcare.com:80
HTTP Clone URL: https://gitdev.b2xcare.com:80/some-project.git
SSH Clone URL: git@gitdev.b2xcare.com:some-project.git
Using LDAP: yes
Using Omniauth: no

GitLab Shell
Version: 2.0.1
Repositories: /home/git/repositories/
Hooks: /home/git/gitlab-shell/hooks/
Git: /usr/bin/git


Kindly help …