Starting pgAdmin4 freezes

[Martti Pitkanen]

Hi,

I have done gmake & make successfully in runtime-directory
Starting pgadmin4 ends up into an frosen "Starting pgAmin4 server" -display.
my host:

Distributor ID:    Linuxmint
Description:    Linux Mint 21
Release:    21
Codename:    vanessa

Linux 5.15.0-88-generic #98-Ubuntu SMP Mon Oct 2 15:18:56 UTC 2023 
x86_64 x86_64 x86_64 GNU/Linux

Any idea would be appreciated.
Thanks in advance, Martti Pitkanen