Update order tag using API

[ARAhmed]

I've been trying to update an order to include the tag imported via the rest API.

My Body 

{
  "order": {
    "id": 186023031616,
    "tags": "Customer contacted us about a custom engraving on this iPod"
  }
}

 My End Url :

https://APIKey:Password@developmentStore.myshopify.com/admin/api/2021-07/orders/186023031616.json

When we call this end url we get some error like:

500 Internal Server Error
If you are the administrator of this website, then please read this web application's log file and/or the web server's log file to find out what went wrong.

If there's any more information i can give to help find a resolution, let me know! Thanks