My app is not working

Recently my app has just been straight up not working at all. And so i tried uninstalling it and installing it again but whenever i try to log in it straight up doesn't work? And sometimes on other browers it doesnt even let me access the download page. Im not sure if its because Im based in Europe or anything else but i just dont understand why this is happening. On a brower im using atm it does work but only that