Machine Learning Classifier Error

How can fix?

Hi
Are you sure API key is correct?
There is quotation marks entered twice at the beginning.

Arrh i fix it but it same error

Hello,
Are you sure to have the correct API key ?
Which public endpoint do you use ?

Yes i checked.API is correct and endpoint i use https://du.uipath.com/ie/purchase_orders

I have doubts about the availability of the endpoint in relation to the country

PurchaseOrders public endpoint only available in west europe region

You can check this url : https://docs.uipath.com/document-understanding/automation-cloud/latest/user-guide/public-endpoints

When i use skill form my machine learning it same error

@parinya.c do you mean it s the same error even when you use ur custom ML model ?

Yes it some differnce but in major is error 401