Ruby on Rails

>> NoMethodError (undefined method `config_value' for nil:NilClass):
>> app/controllers/application_controller.rb:319:in `set_user_language'


Colin please guide me to solve the error.

These are the lines from 310 to 325 in my application_controller.rb

return @local_tzone_time
end

private
def set_user_language
lan = Configuration.find_by_config_key("Locale")
I18n.default_locale = :en
Translator.fallback(true)
if session[:language].nil?
I18n.locale = lan.config_value
else
I18n.locale = session[:language]
end
News.new.reload_news_bar
end
end


My first thing is to solve errors in my installation. i am learning
rails but i am not able to solve the errors occur in my installation.
the fedena forum is not replying for my errors. so please guide me to
solve the errors.

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