@teetow @Miss-BunnY
Black Screen / Map Loading Issues: I have some general recommendations, since it's a long-standing occasional issue affecting a small minority. Sorry that you are having problems. These are in no particular order so try what is easiest for you first, and please report back the results.
1. Try typing "/ref" in the in-game chat.
2. Try a different internet connection, such as a different Wifi hotspot, or tether from your phone, if available, to test. Or try a VPN (there are free ones like ProtonVPN).
3. Your keyboard language should be set to English (United States). PWO does not support Unicode (characters with accents).
4. Try reinstalling PWO. I've had corrupt installations making certain maps glitched / displaying incorrectly and/or unusable.
5. Try temporarily disabling any firewalls / antivirus on your computer, or make exceptions for PWO. Not sure what port(s) PWO uses..
6. Make sure the time and date is set correctly on your computer.
7. Try using a different computer.
Once the cause is known, it's easier to try to correct it.
Most recent successful fix I've seen was #6. Good luck.