I have a problem In a: Creating your own WLM '09 server the updated way

[NicoDM]

My problem is in that part:

@NicoDM

" You can now run python dev through Command Prompt( not Git bash ) to run the server. A cerfiticate will be generated the first time the command is run ( located in .devtls_cache\DO_NOT_TRUST_DevTLS_Escargot.crt ).
Install it to the Trusted Root Certification Authorities as shown below:

It Gives me a error, help me plz?

[NicoDM]

I tried use GIT Cmd, CMD And Visual Studio CMD

[NicoDM]

If I ignore the error, It Can’t connect:

[Craftplacer]

If you don’t tell us enough details besides “it doesn’t work, it returns an error”, we can’t help you.
Tell us what you tried to do, what the error displayed is, etc.