Error code 1000

Error code 1000

Can you please tell me why the following, occasionally causes this error via the api, not every time ?...

zoho.books.updateRecord("salesorders",organizationID,salesorderID,{"template_id":"#################069","custom_fields":[{"label":"DelDate","value":"Tuesday, 18 October 2022"}]}

The requested action could not be completed. Please try again.

P.S.
It would be nice to have this date formatting available in the standard dates available !