Node-Red MQTT First Try - Not working yet

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Please!!!!!!","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":130,"y":540,"wires":[[]]},{"id":"611a064b.1d25a8","type":"function","z":"ecac0728.833678","name":"Sensor value was changed to","func":"msg.payload =  \"Sensor value was changed to \";\nreturn msg;","outputs":1,"noerr":0,"x":530,"y":700,"wires":[["a13f25d2.904f38"]]},{"id":"a13f25d2.904f38","type":"join","z":"ecac0728.833678","name":"","mode":"custom","build":"string","property":"payload","propertyType":"msg","key":"topic","joiner":"\\n","joinerType":"str","accumulate":false,"timeout":"","count":"2","reduceRight":false,"reduceExp":"","reduceInit":"","reduceInitType":"","reduceFixup":"","x":750,"y":700,"wires":[["6e65975d.134458"]]},{"id":"6e65975d.134458","type":"debug","z":"ecac0728.833678","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":950,"y":700,"wires":[]},{"id":"cb38ba08.f9a5a8","type":"function","z":"ecac0728.833678","name":"Sensor value was changed to","func":"var inmsg = msg.payload;\nvar stri = \"Sensor value was changed to \";\nmsg.payload = stri + inmsg;\nreturn msg;","outputs":1,"noerr":0,"x":630,"y":260,"wires":[["f614b.a42d9eb58"]]},{"id":"f614b.a42d9eb58","type":"debug","z":"ecac0728.833678","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"payload","targetType":"msg","x":930,"y":300,"wires":[]},{"id":"5dc2d52e.8d150c","type":"function","z":"ecac0728.833678","name":"Random Number Generator","func":"rnd = Math.round (Math.random() * 100);\nmsg.payload = rnd;\nreturn msg;","outputs":1,"noerr":0,"x":360,"y":540,"wires":[[]]},{"id":"216b10fa.2ba9c","type":"cast-to-client","z":"ecac0728.833678","name":"","url":"","contentType":"","message":"","language":"en","ip":"192.168.1.121","port":"","volume":"","x":950,"y":220,"wires":[[]],"icon":"node-red-contrib-cast/google-home-mini2.svg"},{"id":"10341948.24a977","type":"mqtt-broker","z":"","name":"RPI-HA","broker":"192.168.1.28","port":"1883","clientid":"","usetls":false,"compatmode":false,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","closeTopic":"","closeQos":"0","closePayload":"","willTopic":"","willQos":"0","willPayload":""}]