Hello
Thank you for your question and reaching out.
The error's may cause due to Powershell connects to websites by default using TLS 1.0, while TLS 1.2 is required for website security. Running any of the commands listed below will cause this behaviour to alter to utilise all protocols. Additionally, you can specify a single protocol.
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls, [Net.SecurityProtocolType]::Tls11, [Net.SecurityProtocolType]::Tls12, [Net.SecurityProtocolType]::Ssl3
[Net.ServicePointManager]::SecurityProtocol = "Tls, Tls11, Tls12, Ssl3"
--If the reply is helpful, please Upvote and Accept as answer--