Stocks App NOT working

since a couple of days the STOCK app from Apple is not updating the prizes of any share or crypto market values at the moment. I did try all suggestions from reinstall, etc. But it ain’t working at all. To me personally, it looks like as if the application is not connected to the server at all anymore. Does anyone have a similar issue or is there another problem of which I’m not aware of. help appreciated, advises also, thank you very much.