i18n_safe.rb

require "i18n"

I18n.backend = I18n::Backend::KeyValue.new({})
I18n.backend.store_translations(:en, { test: "Hello %{value}" }, escape: false)

module I18nSafeTranslations
  def translate(*args)
    super
  rescue I18n::MissingInterpolationArgument => e
    # Raven.capture_exception(e) # send to Sentry
    ""
  end
end

I18n.singleton_class.prepend I18nSafeTranslations

puts I18n.translate("test", value: "John")
puts I18n.translate("test", val: "John")