Creating a Confluence page with

Hello,
I want to create a Confluence page via Rest-API. The page contains a table. This table is embedded in a “page-properties”-macro. The problem is that I get a error message(“Error loading the extension!”) when I load the new page in Confluence. Also the dashboard with the content properties report doesn’t get any information from the new confluence page.
This is the request. HTTP-Response is 200. Any hints for this problem?

POST /wiki/rest/api/content HTTP/2
Host: …atlassian.net
Accept: application/json
Content-Type: application/json
Authorization: …
Content-Length: 800

{
“type”: “page”,
“space”:{“key”:“ADU”},
“title”: “Test Title”,
“ancestors”: [{“id”: “123456”}],
“body”: {
“storage”: {
“value”: “<ac:structured-macro ac:name=“page-properties”>ac:rich-text-bodyKey1Value1 Key2 Value2</ac:rich-text-body></ac:structured-macro>”,
“representation”: “storage”
}
},
“metadata”: {
“labels”: [{“name”: “KEYFIGURE”}]
}
}