Add new error message to use NotFoundException instead

src/invidious/channels/about.cr

@@ -19,6 +19,11 @@ record AboutChannel,
   verified : Bool,
   is_age_gated : Bool
 
+private DELETED_CHANNEL_ERROR_MESSAGES = {
+  "This channel does not exist.",
+  "This account has been terminated for a violation of YouTube's Terms of Service.",
+}
+
 def get_about_info(ucid) : AboutChannel
   begin
     # Fetch channel information from channel home page
@@ -29,7 +34,7 @@ def get_about_info(ucid) : AboutChannel
 
   if initdata.dig?("alerts", 0, "alertRenderer", "type") == "ERROR"
     error_message = initdata["alerts"][0]["alertRenderer"]["text"]["simpleText"].as_s
-    if error_message == "This channel does not exist."
+    if DELETED_CHANNEL_ERROR_MESSAGES.includes?(error_message)
       raise NotFoundException.new(error_message)
     else
       raise InfoException.new(error_message)

src/invidious/channels/channels.cr

@@ -161,7 +161,7 @@ def fetch_channel(ucid, pull_all_videos : Bool)
 
   # Deleted channels raise a `InfoException` exception.
   begin
-    channel = get_about_info(ucid, nil)
+    channel = get_about_info(ucid)
   rescue ex
     raise ex
   end

src/invidious/jobs/refresh_channels_job.cr

@@ -43,7 +43,7 @@ class Invidious::Jobs::RefreshChannelsJob < Invidious::Jobs::BaseJob
               end
             rescue ex
               LOGGER.error("RefreshChannelsJob: #{id} : #{ex.message}")
-              if ex.is_a?(InfoException)
+              if ex.is_a?(NotFoundException)
                 Invidious::Database::Channels.update_mark_deleted(id)
               else
                 lim_fibers = 1