Mqtt Setpoint No numbers

Hi, I have one servo motor. With this I will open and close the valve. But I want to open the valve at an angle. I want to use setpoint for this. Minimum 0 to Maximum 100. in 10 steps. But I can’t make mqtt broadcast somehow. But when I set it as switch, when I say ON=15 and OFF=75, mqtt broadcasts. I need your help, where am I going wrong?

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Frame label="Garden Departments"{
Group item=gGWa icon="garden"{
Setpoint item=Valve01	minValue=0 maxValue=100 step=5      
      }

İtems

 /*GARDEN*/
 Number Valve01	"Water Pump Line01" <valve> (gGWa) {channel="mqtt:topic:haybolat:garden:servo1"}

Channel

UID: mqtt:topic:haybolat:garden
label: Garden
thingTypeUID: mqtt:topic
configuration: {}
bridgeUID: mqtt:broker:haybolat
location: Garden
channels:
  - id: servo1
    channelTypeUID: mqtt:number
    label: servo1
    description: ""
    configuration:
      commandTopic: servo1
      min: 0
      stateTopic: servo1
      max: 100

There is no Thing, I don’t know what to do there.

Can you copy/paste your code in-between code fences in your post, instead of screenshots, and could you also include your Thing and Channel configuration.

Sorry, I made a correction.

you can’t change the channelTypeUID after the channel has been created.

Create a new channel with a different name and try again