Yes, Thanks for your help. I have found this and i was trying with "_" instead of "-" in SSL parameters but i did not update --host which is required arguments here. Thanks for identifying the issue but i am getting Unsupported TLS error now.

C:\Users\Documents\Perl\webapp\bin>plackup -p 5001 --ssl --ssl_key_fil
+e=self-signedkey.key --ssl_cert_file=self-signed.crt --host 127.0.0.1
+ app.psgi
[webapp:20468] core @2021-05-08 19:38:07> Built config from files: C:\
+Users\Documents\Perl\webapp\config.yml C:\Users\Documents\Perl\webapp
+\environments\development.yml in (eval 272) l. 910
HTTP::Server::PSGI: Accepting connections at https://127.0.0.1:5001/
[download]

Please check below error that i am getting while trying to access the site. I am trying to resolve this but if you have faced this issue let me know the solution if possible. I have tried in IE and Chrome

Can’t connect securely to this page This might be because the site uses outdated or unsafe TLS security settings. If this keeps happening, try contacting the website’s owner. Try this: •Go back to the last page