Connection refused when accessing VNC

Hello,

I have setup tunnel for my VNC app

however after server update

I now receive connection refused error when accessing vnc domain via browser:

from cloudflared cli logs:
2023-09-30T11:06:54Z error http {“cfRay”:“80ebffc96d1dc240-VIE”,“error”:“dial tcp 127.0.0.1:5901: connect: connection refused”,“ingressRule”:“0”,“originService”:“tcp://localhost:5901”}

before udpate it was working just fine. Am I missing something ?

more logs

2023-09-30T11:12:39Z error cloudflared Request failed {“connIndex”:0,“dest”:“vnc.”,“error”:“dial tcp 127.0.0.1:5901: connect: connection refused”,“ip”:“198.41.192.227”,“type”:“ws”}