Spark(Openfire) Plugins HTTP File upload download error

I’m trying to install HTTP File upload on Spark(Oenfire) server, but I can’t install it because the network is closed. Is there an IP and Port that should be allowed?

7443/tcp

“To change the HTTP server port from the default value (7443) used by Openfire, the property plugin.httpfileupload.announcedWebPort can be set to new value.”