Unable to start emulator Manager in Mac 11.4

when I try to open the emulator manager I got the below issue, see the atatched screenshot. 


Unexpection exception occurred


Exception in application start method


I tried different ways to open the emulator manager,

one of them is trying through terminal, I got the error only that time too, see the screenshot.

followed both java sdk and open sdk plus javafx as in the url and

I have java sdk when doing java -version i got  java version "1.8.0_301"

Please help me in opening the emulator manager. Thanks in advance for any help.

I am actaully trying to enable the internet connection in emulator, through emulator manager.

Edited by: Mohamed Hussain on 23 Aug, 2021