I marked accidentally all episodes of Dope thief, but I can’t delete for marking one episode.
Are the episodes still in your history? I couldn’t find that show there.
I tried to deleted episodes. But I see red line with word - error, but in history I can’t find episodes
If they aren’t in your history, you deleted them correctly.
You can reset your browser data here, that should clear the red line error and any cache bugs you might be seeing on your end.