Error can't run web after shutdown VM (file OVA Production)

I still browsing what happend to my problem

  1. iam run ova in my VM, and just click and run well
  2. iam newbie in linux ecosystem so iam shut down VM not normally
  3. when iam open VM again i have problem


but iam open incognito browser, thats run well

can someone give me insight what happend?. Ty

Did you use http://localhost:8000?

i use localhost:8080

Can you share the traceback/screenshots?

sorry, how to catch traceback in linux terminal? (sorry im still learn with linux os)