Project Settings cant access

[maheshorelit]

Hi,

After installing the plugin, the project settings display "Internal error" and the log show as below, please help me to the solve this issue.

Error Log

`Started GET "/projects/test/settings" for 192.168.107.7 at 2021-10-13 16:21:16 +0530
Processing by ProjectsController#settings as HTML
Parameters: {"id"=>"test"}
Current user: admin (id=1)
Rendering projects/settings.html.erb within layouts/base
Rendered projects/_form.html.erb (11.4ms)
Rendered projects/_edit.html.erb (12.3ms)
Rendered projects/settings/_members.html.erb (3.5ms)
Rendered projects/settings/_issues.html.erb (7.1ms)
Rendered plugins/scrum/app/views/help/project_settings/_sprints.html.erb (0.0ms)
Rendered plugins/scrum/app/views/help/_support.html.erb (0.2ms)
Rendered plugins/scrum/app/views/help/_help.js.erb (0.1ms)
Rendered plugins/scrum/app/views/help/_help.html.erb (1.0ms)
Rendered plugins/scrum/app/views/projects/settings/_sprints.html.erb (7.0ms)
Rendered plugins/scrum/app/views/help/project_settings/_product_backlogs.html.erb (0.0ms)
Rendered plugins/scrum/app/views/help/_support.html.erb (0.2ms)
Rendered plugins/scrum/app/views/help/_help.js.erb (0.1ms)
Rendered plugins/scrum/app/views/help/_help.html.erb (1.0ms)
Rendered plugins/scrum/app/views/projects/settings/_product_backlogs.html.erb (2.9ms)
Rendered projects/settings/_versions.html.erb (3.0ms)
Rendered projects/settings/_issue_categories.html.erb (1.4ms)
Rendered projects/settings/_repositories.html.erb (1.2ms)
Rendered projects/settings/_boards.html.erb (1.4ms)
Rendered projects/settings/_activities.html.erb (6.1ms)
Rendered plugins/redmine_custom_workflows/app/views/projects/settings/_custom_workflow.html.erb (5.3ms)
Rendered plugins/redmine_zulip/app/views/projects/settings/_redmine_zulip.html.erb (29.4ms)
Rendered common/_tabs.html.erb (87.0ms)
Rendered projects/settings.html.erb within layouts/base (89.0ms)
Completed 500 Internal Server Error in 105ms (ActiveRecord: 9.2ms)

ActionView::Template::Error (undefined method `zulip_url' for #Project:0x00007f7c8539a888):
2:

3:

4: <%= content_tag(:label, l(:field_zulip_url)) %>
5: <%= f.text_field :zulip_url %>
6:

7:

8: <%= content_tag(:label, l(:field_zulip_email)) %>

plugins/redmine_zulip/app/views/projects/settings/_redmine_zulip.html.erb:5:in block in _plugins_redmine_zulip_app_views_projects_settings__redmine_zulip_html_erb___2598373033773783355_101680' plugins/redmine_zulip/app/views/projects/settings/_redmine_zulip.html.erb:1:in _plugins_redmine_zulip_app_views_projects_settings__redmine_zulip_html_erb___2598373033773783355_101680'
app/views/common/_tabs.html.erb:21:in block in _app_views_common__tabs_html_erb__4318244462379308039_101120' app/views/common/_tabs.html.erb:20:in each'
app/views/common/_tabs.html.erb:20:in _app_views_common__tabs_html_erb__4318244462379308039_101120' app/helpers/application_helper.rb:481:in render_tabs'
app/views/projects/settings.html.erb:3:in _app_views_projects_settings_html_erb__1612233068158226400_101100' lib/redmine/sudo_mode.rb:61:in sudo_mode'
`
and my Redmine server details as below,

Server details

Environment:
Redmine version 4.2.3.stable
Ruby version 2.7.0-p0 (2019-12-25) [x86_64-linux-gnu]
Rails version 5.2.6
Environment production
Database adapter Mysql2
Mailer queue ActiveJob::QueueAdapters::AsyncAdapter
Mailer delivery smtp
SCM:
Git 2.25.1
Filesystem
Redmine plugins:
dashboard 1.0.11
kanban 0.0.9
progressive_projects_list 4.0.0
redmine_custom_workflows 1.0.6
redmine_dashboard 2.11.0
redmine_issue_dynamic_edit 0.7.2
redmine_zulip 2.1.2
scrum 0.20.0

Error Message