Sharetribe 7.2 Manage Users = Marketplace temporarily unavailable

On fresh install in Admin when you click on Manage Users …

Marketplace temporarily unavailable

Why? How to fix this?

When I connected my account to Facebook and second user registered on
the site. After second user registered in Admin after clicking on Manage
Users I get Marketplace temporarily unavailable page.
Sharetribe Version:

7.2.0
Environment:

Ubuntu 16.0.4

node -v 7.8.0
npm -v 4.2.0

Server mode:

Production
Description:

Manage users link in Admin goes to Marketplace temporarily
unavailable page after second user registers. Both users also used
Facebook to login after registering by email.

I had this issue since my very first install but I assumed it was gone because link is accessible while there is only one user.

Link becomes inaccessible after second user registers. Both users also used Facebook to login after registering with emails.

Update*****

This is due to changing main language from en (English) to lt
(Lithuanian) but I still have no idea how to fix this issue and setup
main language as default without giving this error.

Other pages seem to work fine.

Thanks for reporting. Seems to be related to the new language indeed.

So to confirm: it works when using English, right?
What kind of messages can you find from your console/logs?

As I mentioned so far only issue is with

Admin Manage Users - Getting error page

and

translation missing:lt.admin.communities.available_languages.lt

in enabled languages is not getting translated. If I do add lt: Lithuanian in lt.yml file server is getting 500 server error and in error logs I get something about unknown locale.

Here is error from log when I try to access Manage Users:

Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: {"method":"GET","path":"/lt/admin/communities/1/community_memberships","format":"html","controller":"Admin::CommunityMembershipsController","action":"index","status":500,"error":"ActionView::Template::Error: translation data {:zero=>\"No %{model} found\", :one=>\"Displaying <b>%{accepted_count}</b> accepted %{accepted_model} and %{banned_count} banned %{banned_model}\", :other=>\"Displaying <b>%{accepted_count}</b> accepted %{accepted_model} and %{banned_count} banned %{banned_model}\"} can not be used with :count => 3","duration":81.22,"view":0.0,"db":22.94,"params":{"direction":"desc","sort":"join_date","locale":"lt","community_id":"1"},"host":"www.xxxxxxxxx.lt","community_id":1,"current_user_id":"16br0ILesHclE0zgfel3hw","user_agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0","referer":"http://www.xxxxxxxxx.lt/lt/admin/getting_started_guide","forwarded_for":"xxxxxxxxx","request_uuid":"xxxxxxxxx"}
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]:   
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: ActionView::Template::Error (translation data {:zero=>"No %{model} found", :one=>"Displaying <b>%{accepted_count}</b> accepted %{accepted_model} and %{banned_count} banned %{banned_model}", :other=>"Displaying <b>%{accepted_count}</b> accepted %{accepted_model} and %{banned_count} banned %{banned_model}"} can not be used with :count => 3):
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]:     38:     #export-as-csv.right= link_to(" " + t("admin.communities.manage_members.export_all_as_csv"), {format: :csv}, {class: "js-users-csv-export " + icon_class("download")})
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]:     39:
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]:     40:   %span#admin_members_count
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]:     41:     = AdminCommunityMembershipsViewUtils.community_members_entries_info(@current_community.id, @memberships).html_safe
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]:     42:     - if params[:q].present?
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]:     43:       = t("admin.communities.manage_members.for_search_terms", terms: "<strong>#{h params[:q]}</strong>".html_safe).html_safe
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]:     44:
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]:   
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: config/initializers/i18n.rb:96:in `translate_with_service_name'
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: app/view_utils/admin_community_memberships_view_utils.rb:66:in `will_paginate_translate'
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: app/view_utils/admin_community_memberships_view_utils.rb:59:in `community_members_entries_info'
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: app/views/admin/community_memberships/index.haml:41:in `_app_views_admin_community_memberships_index_haml___3733964325520330297_69873182222580'
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: lib/rack_middleware/session_context_middleware.rb:15:in `call'
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: lib/rack_middleware/marketplace_lookup.rb:33:in `call'
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: lib/rack_middleware/custom_cookie_renamer.rb:11:in `call'
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: lib/rack_middleware/enforce_ssl.rb:23:in `call'
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: lib/rack_middleware/health_check.rb:12:in `call'
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: {"method":"GET","path":"/500","format":"html","controller":"ErrorsController","action":"server_error","status":500,"duration":9.12,"view":1.74,"db":0.05,"params":{"direction":"desc","sort":"join_date","locale":"lt","community_id":"1"},"host":null,"community_id":null,"current_user_id":null,"user_agent":null,"referer":null,"forwarded_for":null,"request_uuid":null}
Jan  4 17:37:27 xxxxxxxxx sharetri2[1268]: 127.0.0.1 - - [04/Jan/2018:17:37:27 CET] "GET /lt/admin/communities/1/community_memberships?direction=desc&sort=join_date HTTP/1.1" 500 849