Opennos problem help

Hello guys , i need help to open opennos

1 problem : To open world server : _hubconnection.Start().Wait(); Failed

2 Problem : to open login server : http:// prnt.sc/ e6m0ye

i need help to fix this, thanks guys

Restarted the visual studio or the app or dont launch the opennos.world and opennos.login and opennos.webapi.selfhot

Thanks hugo50000 Please Closed