Emulator status128 Error Problem

Hello, I am giving a lecture at school.
Amulator is struggling because it's not running.
I get the following error message, but I don't know the cause
Please solve it ㅜㅜㅜㅜ

arter.py", line 376, in
File "bottle.py", line 3127, in run
File "bottle.py", line 2781, in run
File "wsgiref\simple_server.py", line 153, in make_server
File "socketserver.py", line 452, in init
File "wsgiref\simple_server.py", line 50, in server_bind
File "http\server.py", line 139, in server_bind
File "socket.py", line 676, in getfqdn
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xc4 in position 0: invalid continuation byte
Error: Process "emulator64-crash-service.exe" not found.
Error: Process "qemu-system-x86_64.exe" not found.
Error: Process "emulator.exe" not found.
Error: Process "adb.exe" not found.

status128

Does emulator run with your device when you use run App Inventor at home?
If it works there it is probable the school is blocking port 8004?

See

What Operating System version are you running the emulator on?

Alternative emulators:

Simply use App Inventor Companion on your (Android) device or run your APK? You can potentially screen-cast your Android device to the PC.

The reasons for any emulator failing are far and wide unfortunately. One I found was an extension working fine on Android but the emulator would not work with it. At the time I used a 3rd party emulator, BlueStacks, as a work-around, which worked very well.