It's not just you: Google Maps is down. According to 9to5Google, the outage started sometime around 1 p.m. PT (4 p.m. PT), and seems to be isolated to the Google Maps mobile app. If you try to load Google Maps' web app, it should work. That's the case on my end: I can use Google Maps in a web browser without any issue, but when I open the app on my phone, I run into problems. It seems Google is working on the issue, because the map will load when I open the app on my iPhone. However, if I try to search for a location, the results won't load. If I tap on a location, I get an "unable to resolve details" error. And if I try to pull up directions to a location, I get a "Can't reach the internet" error, as it the problem is with my wifi or cellular connection.I imagine Google will fix the problem soon, but, in the meantime, you might want to try an alternative maps app.