are you using username/password or api key ? I initially though you were using Flights Nearby App. I didn’t realy flights overhead has a straight up text input for location. I really have no idea what format it should be.
For flights_overhead I can only tell you that in pixlet serve the desc shows to enter it as Latitude,Longitude
If using the airlabs api key you can use this url to see if your apikey is working by pasting your api key onto the end and seeing if any data is returned.
