Tips on understanding flying locations!

Good evening,

Years ago, I had an incident where I very flew very high in a do not fly zone. The confusion came from a new DJI App listing my location as a “Keep Caution, Warning Zone”. Also, the DJI Forum saying it was perfectly legal to fly in the type of zone it was listed as just stay below 200 feet.

Scared me to death finding out it was a mistake, as other Apps were listing it as a “No Fly Zone”. Didn’t fly for a while, worried maybe next time could leave me without a drone & large fines if something similar happened.

Getting back into flying what are some ways I can prevent this? Are there more reliable Apps that have this type of information?