facing error after installation

i am facing two issue

1. ERROR on local host i am using XAMPP with mac os and after installation on click on “listen to this post” i am getting below error in alert box
Error: SSL certificate problem: unable to get local issuer certificate.

2. I created dummy host using free hosting
http://mod1906.co.nf/
here also it is giving error “Could not connect to host”

As of now i dont have purchased host url

Please help me resolve any of these two error

https://ww.wp.xz.cn/plugins/tts-engine-post-to-speech/