Discourse Installation Failure on Fresh Server: FAILED TO BOOTSTRAP

Installation
5

But atleast according to

port 80 or 443 are free

root@wims-collaboration-instance:/var/discourse# sudo lsof -i -P -n
COMMAND    PID            USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
systemd-n  403 systemd-network   15u  IPv4  44356      0t0  UDP 10.128.0.5:68 
systemd-r  405 systemd-resolve   13u  IPv4  15076      0t0  UDP 127.0.0.53:53 
systemd-r  405 systemd-resolve   14u  IPv4  15077      0t0  TCP 127.0.0.53:53 (LISTEN)
chronyd    450         _chrony    5u  IPv4  15241      0t0  UDP 127.0.0.1:323 
chronyd    450         _chrony    6u  IPv6  15242      0t0  UDP [::1]:323 
google_os  451            root    3u  IPv4  15296      0t0  TCP 10.128.0.5:42794->169.254.169.254:80 (ESTABLISHED)
google_os  451            root    8u  IPv4  53026      0t0  TCP 10.128.0.5:43566->216.239.34.174:443 (ESTABLISHED)
google_gu  510            root    6u  IPv4  50869      0t0  TCP 10.128.0.5:43170->216.239.36.174:443 (ESTABLISHED)
google_gu  510            root    9u  IPv4  17759      0t0  TCP 10.128.0.5:50528->169.254.169.254:80 (ESTABLISHED)
sshd       725            root    3u  IPv4  17765      0t0  TCP *:22 (LISTEN)
sshd       725            root    4u  IPv6  17767      0t0  TCP *:22 (LISTEN)
sshd      6527            root    4u  IPv4  42936      0t0  TCP 10.128.0.5:22->35.235.244.33:34847 (ESTABLISHED)
sshd      6612   james_katwere    4u  IPv4  42936      0t0  TCP 10.128.0.5:22->35.235.244.33:34847 (ESTABLISHED)