Using HiveMQ as a MQTT Broker with Home Assistant

I am running HA using HA OS I used to have Owntrack using HiveMQTT running with my apple iphione. I am trying to get it running again. In the various documentatatio for the IOS app. I find a lot of various approaches to the correct username and password. I have tried a HiveMQTT
credential and also my HA Both gives me the same error Can anyone help Images of Confiiguration and Error message attached


The problem turned out to be a leading space on the broker address. and also on the encryption key (which was impossible to see with the # mask) now to try to get the map to word

I took “solution” away. HA on my Linux virtual machine appears to be communicating with HiveMQTT (my MQTT Broker) . but nothings shows in HA. . no regions, no, POI no way point The broker reports receiving. and alll the above shows on the iPhone HA

actually I was wrong. locations are in fact showing