[URGENT] Assigning domain to dedicated IP causes nginx not to start

[Spacedust]

It shows something like this:

Stopping nginx:                                            [FAILED]
Starting nginx: nginx: [emerg] invalid port in "5.9.214.173:" of the "listen" directive in /opt/configs/nginx/conf/domains/plociara.pl.conf:53
                                                           [FAILED]