It's normal. Litchi is not in season yet. It will take some time until you feel like vomiting when it's cheap. Blackberry is actually the same variety as the plums that are usually sold, but it's usually imported, so it's expensive, and the quantity is not too much. The ones that are sold out are usually very ripe, full of sweetness, and the taste is ok, but they can't afford it. If you don't eat them for two or three days, it will be easy to rot. What it looks like is?