Hello,
I had a clean installation of Openproject 3.0.0, it works fine, but after cloning of plugins I get Error 500:

Internal error

An error occurred on the page you were trying to access.
If you continue to experience problems please contact your OpenProject administrator for assistance.

If you are the OpenProject administrator, check your log files for details about the error.

Back

“and I got this on http://MyOpenProject/settings”

Started GET "/settings" for 5.104.16.48 at 2014-02-17 11:58:12 +0100
Processing by SettingsController#index as HTML
Rendered settings/_general.html.erb (6.7ms)
Rendered settings/_display.html.erb (4.4ms)
Rendered settings/_authentication.html.erb (6.4ms)
Rendered settings/_users.html.erb (2.0ms)
Rendered settings/_projects.html.erb (6.5ms)
Rendered common/_tabs.html.erb (110.8ms)
Rendered settings/edit.html.erb within layouts/admin (114.8ms)
Completed 500 Internal Server Error in 125.4ms
ActionView::Template::Error (invalid byte sequence in UTF-8):
38: <p><%= setting_check_box :sequential_project_identifiers %></p>
39:
40: <p><%= setting_select :new_project_user_role_id,
41: Role.find_all_givable.collect {|r| [r.name, r.id.to_s]},
42: :blank => "--- #{l(:actionview_instancetag_blank_option)} ---" %></p>
43: </div>
44:
app/views/settings/_projects.html.erb:41:in `block in _app_views_settings__projects_html_erb___1839158042885845183_48352480'
app/views/settings/_projects.html.erb:30:in `_app_views_settings__projects_html_erb___1839158042885845183_48352480'
app/views/common/_tabs.html.erb:61:in `block in _app_views_common__tabs_html_erb___4400581538159308454_68985720'
app/views/common/_tabs.html.erb:60:in `each'
app/views/common/_tabs.html.erb:60:in `_app_views_common__tabs_html_erb___4400581538159308454_68985720'
app/helpers/application_helper.rb:295:in `render_tabs'
app/views/settings/edit.html.erb:34:in `_app_views_settings_edit_html_erb___4602745010627628848_68915100'
app/controllers/settings_controller.rb:37:in `index'

and on “http://MyOpenProject/projects/my-first-project/settings”

Started GET "/projects/hotelovy-rezervacni-web/settings" for 5.104.16.48 at 2014-02-17 12:00:44 +0100
Processing by ProjectsController#settings as HTML
Parameters: {"id"=>"hotelovy-rezervacni-web"}
Rendered layouts/_action_menu_base.html.erb (0.0ms)
Rendered layouts/_action_menu_specific.html.erb (0.2ms)
Rendered projects/settings/_action_menu.html.erb (0.9ms)
Rendered projects/form/attributes/_name.html.erb (0.8ms)
Rendered projects/form/attributes/_parent_id.html.erb (1.8ms)
Rendered projects/form/attributes/_summary.html.erb (1.0ms)
Rendered projects/form/attributes/_description.html.erb (2.0ms)
Rendered projects/form/attributes/_identifier.html.erb (0.5ms)
Rendered projects/form/attributes/_homepage.html.erb (0.2ms)
Rendered projects/form/attributes/_is_public.html.erb (0.7ms)
Rendered projects/form/attributes/_custom_fields.html.erb (0.5ms)
Rendered projects/form/_project_attributes.html.erb (8.7ms)
Rendered projects/form/attributes/_project_type_id.html.erb (0.7ms)
Rendered projects/form/attributes/_responsible_id.html.erb (1.7ms)
Rendered projects/form/_timelines_attributes.html.erb (2.7ms)
Rendered projects/_form.html.erb (11.9ms)
Rendered projects/_edit.html.erb (12.9ms)
Rendered projects/settings/_modules.html.erb (2.0ms)
Rendered projects/settings/_members.html.erb (3.3ms)
Rendered common/_tabs.html.erb (20.6ms)
Rendered projects/settings.html.erb within layouts/base (22.5ms)
Completed 500 Internal Server Error in 31.3ms
ActionView::Template::Error (invalid byte sequence in UTF-8):
29: <%= javascript_include_tag "members_form.js" %>
30:
31: <%= error_messages_for 'member' %>
32: <% roles = Role.find_all_givable
33: # Check if there is at least one principal that can be added to the project
34: principals_available = @project.possible_members("", 1)
35: member_per_page = 20
app/views/projects/settings/_members.html.erb:32:in `_app_views_projects_settings__members_html_erb___3429561626995840207_68042960'
app/views/common/_tabs.html.erb:61:in `block in _app_views_common__tabs_html_erb___4400581538159308454_68985720'
app/views/common/_tabs.html.erb:60:in `each'
app/views/common/_tabs.html.erb:60:in `_app_views_common__tabs_html_erb___4400581538159308454_68985720'
app/helpers/application_helper.rb:295:in `render_tabs'
app/views/projects/settings.html.erb:34:in `_app_views_projects_settings_html_erb__2062262150463677341_64053960'

What I did bad in my installation? Begin of the deletion
End of the deletion