I'm having this error below when trying to send a custom template message with media document. I tried to delete and recreate the template, but I still have the same error:

{
  "error": {
    "message": "(#135000) Generic user error",
    "type": "OAuthException",
    "code": 135000,
    "error_data": {
      "messaging_product": "whatsapp",
      "details": "Generic user error"
    },
    "fbtrace_id": "Ag9KJtiPcbLnCMHGXeMw3yq"
  }
}