Hello,
i build a flow to get the value of the changes on the sharepoint list columns.
i am using the "Action 'Send_an_HTTP_request_to_SharePoint" to get the Value of the changes. I keep on getting this error "Input string was not in a correct format".
can anyone please help me how to fix this error?
here is my flow and the error im getting:

error raw message
"statusCode": 400,
"headers": {
"Pragma": "no-cache",
"x-ms-request-id": "f2a9f39f-b084-1000-2106-018d52ff74ef",
"Strict-Transport-Security": "max-age=31536000; includeSubDomains",
"X-Content-Type-Options": "nosniff",
"X-Frame-Options": "DENY",
"Cache-Control": "no-store, no-cache",
"Set-Cookie": "ARRAffinity=661bb5a42aa72fa187081047289be23c4e8833591c3737a25cf4a4f79726a2fa;Path=/;HttpOnly;Secure;Domain=sharepointonline-eus2.azconn-eus2.p.azurewebsites.net,ARRAffinitySameSite=661bb5a42aa72fa187081047289be23c4e8833591c3737a25cf4a4f79726a2fa;Path=/;HttpOnly;SameSite=None;Secure;Domain=sharepointonline-eus2.azconn-eus2.p.azurewebsites.net",
"Timing-Allow-Origin": "*",
"x-ms-apihub-cached-response": "true",
"Date": "Mon, 27 Sep 2021 18:09:12 GMT",
"Content-Length": "457",
"Content-Type": "application/json",
"Expires": "-1"
},
"body": {
"status": 400,
"message": "Input string was not in a correct format.\r\nclientRequestId: 06834dc4-536c-46ad-a5cb-83f52cd42e53\r\nserviceRequestId: f2a9f39f-b084-1000-2106-018d52ff74ef",
"source": "https://pharmscript.sharepoint.com/sites/RevenueCycleOperations/_api/web/lists/getByTitle('Facility%20Billing%20Allocation')/items(2951)/versions(1.0)",
"errors": [
"-1",
"Microsoft.SharePoint.Client.InvalidClientQueryException"
]
}
}
here is my current flow set up:
