Error in local import

I would use  ocsinventory-injector.pl to local import inventory: from GUI I have this error message:

Errore 111 / Connection refused Al server: http://localhost:80/ocsinventory

I’ve tried:

perl ocsinventory-injector.pl -f /tmp/<filename>.ocs -u http://localhost/ocsinventory -v

error:

ERROR: 500 Can't connect to <IPaddress>:80 (Connection refused)

Then:

 perl ocsinventory-injector.pl -f /tmp/<filename>.ocs -u https://localhost/ocsinventory -v
with:

ERROR: 500 SSL_ca_file cacert.pem can't be used: No such file or directory
Then :

 perl ocsinventory-injector.pl -f /tmp/<filename>.ocs -u https://localhost/ocsinventory --sslmode 0 -v
With:

ERROR: 500 SSL_ca_file cacert.pem can't be used: No such file or directory

I do not want to use any certificate because I work on a LAN without external connection.Thanks