ubuntu server in proxmox, failed: No route to host

[Axala]

Hello
I'm new user of proxmox
I try to install a pterodactyl server on a ubuntu server in proxmox at home
I use this script : https://pterodactyl-installer.se
All seems good with the installation but it fails when it needs to connect to github

curl -v https://github.com

Host github.com:443 was resolved.
IPv6: (none)
IPv4: 140.82.121.4
Trying 140.82.121.4:443...
connect to 140.82.121.4 port 443 from 192.168.1.199 port 38174 failed: No route to host
Failed to connect to github.com port 443 after 3115 ms: Couldn't connect to server
Closing connection
curl: (7) Failed to connect to github.com port 443 after 3115 ms: Couldn't connect to server

What is wrong with my server ?

ip route show in the server

default via 192.168.1.1 dev ens18 proto static
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.1.0/24 dev ens18 proto kernel scope link src 192.168.1.199