Hello Penamacor !

It seems you've installed the JOT server according to this manual https://github.com/unaio/jot-server . So what trouble do you have with this part?

/* If you have https server (recommended) you need to fill 3 fields below */

    root: '/folder/with/https/cert/files',

    cert: 'myfilename.cert',

    key: 'myfilename.cert',