UTorrent is not working anymore

Hello, I usually download my files via torrent, so I use uTorrent.
However, since yesterday, I can’t download anything from any site. Let me explain my case: I go to any site that offers torrent files, I choose the one I’m interested in, I check that there are more seeds than leechers, I click on download, and then nothing happens at all. uTorrent opens correctly, but nothing starts and nothing appears in the uTorrent window. I've uninstalled and reinstalled it, but still nothing.
I then installed BitTorrent, and everything works fine, but I need uTorrent. Can someone help me, please?