Woocommerce API获取身份验证错误

I'm created WooCommerce keys (consumer key and secret with read/write access). Using postman I'm trying to get products.

Below is my URL:

https://www.example.com/wp-json/wc/v3/products?oauth_consumer_key=ck_xxxxxxxx&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1563344366&oauth_nonce=IscAPO&oauth_version=1.0&oauth_signature=URuHSJkskksim/fY4ULcwJf82I

I'm getting the below response:

The site is experiencing technical difficulties

But I'm able get my orders using the wp-json/wc/v3/orders?.... url.