Seafile 7.0.0 fresh install refuses connections at port 8000 from LAN

Fresh installation of Seafile 7.0.0 over fresh Raspbian buster. When tried to connect server via http://<server_ip_address>:8000 got ERR_CONNECTION_REFUSED. Also the same error with client connection. Both in the LAN. In the server it works. Ping works and windows client without firewall