Get error when I view the help center article

[peteryang1756]

I got We're sorry, but something went wrong.
How to fix it
My log:

I, [2024-07-09T08:56:45.918039 #71]  INFO -- : RoomChannel#update_presence
I, [2024-07-09T08:56:46.949851 #71]  INFO -- : RoomChannel#update_presence
I, [2024-07-09T08:56:55.377086 #71]  INFO -- : source=rack-timeout id=cd0b034b-028f-4f11-93d3-afb1da078170 wait=0ms timeout=15000ms state=ready
I, [2024-07-09T08:56:55.377680 #71]  INFO -- : [cd0b034b-028f-4f11-93d3-afb1da078170] Started GET "/hc/123/articles/1720494312-iwwk" for 49.158.133.121 at 2024-07-09 08:56:55 +0000I, [2024-07-09T08:56:55.383627 #71]  INFO -- : [cd0b034b-028f-4f11-93d3-afb1da078170] Processing by Public::Api::V1::Portals::ArticlesController#show as HTML
I, [2024-07-09T08:56:55.383669 #71]  INFO -- : [cd0b034b-028f-4f11-93d3-afb1da078170]   Parameters: {"slug"=>"123", "article_slug"=>"1720494312-iwwk"}
I, [2024-07-09T08:56:55.396161 #71]  INFO -- : [cd0b034b-028f-4f11-93d3-afb1da078170] Article: not found for slug: 1720494312-iwwkI, [2024-07-09T08:56:55.399539 #71]  INFO -- : [cd0b034b-028f-4f11-93d3-afb1da078170] Completed 500 Internal Server Error in 16ms (ActiveRecord: 3.5ms | Allocations: 2479)
F, [2024-07-09T08:56:55.399943 #71] FATAL -- : [cd0b034b-028f-4f11-93d3-afb1da078170]   
[cd0b034b-028f-4f11-93d3-afb1da078170] I18n::InvalidLocale ("zh_Hant_TW" is not a valid locale):
[cd0b034b-028f-4f11-93d3-afb1da078170]   
[cd0b034b-028f-4f11-93d3-afb1da078170] app/controllers/public/api/v1/portals/base_controller.rb:53:in `switch_locale_with_article'[cd0b034b-028f-4f11-93d3-afb1da078170] app/controllers/public/api/v1/portals/base_controller.rb:24:in `set_locale'
I, [2024-07-09T08:56:55.400159 #71]  INFO -- : source=rack-timeout id=cd0b034b-028f-4f11-93d3-afb1da078170 wait=0ms timeout=15000ms service=23ms state=completed