I have created an automation in Confluence, that collects some information from a Confluence page (stored in a variable) I want to update an issue in Jira with these variables.
My trigger is "Task status changed"

I have two variables:
1) {{CommittedValue}}

2) {{JiraTicketNo}}

Both variables are coming out correctly.
I am using "Send web request" to put the two variables into Jira:

I am the owner of the project in Jira. I have created the Jira ticket/issue. I have created the Token. And I have developed the Confluence Automation.
But I get this error message:

Can anyone see what I am doing wrong???