i think the issue is with the certificate files.. At least i dont see a separate key and a private cert file.. I just have several .crt files, and have the  same file  for both variables. I dont see any key files in the /home/webgurul/ssl/certs folder. The relevant files i have to choose from are:

penamacor_network_webguru_live_92925_f13cf_1615247999_26a004d81c28f7315b7e49b9cb313934.crt
penamacor_network_webguru_live_c035a_2db31_1638961496_a8483a74aad46fe88221b1dd5bc54c8e.crt
penamacor_network_webguru_live_d9ad0_66be1_1615247999_91db5af7f95f143a155561df884a0fdc.crt
penamacor_network_webguru_live_d9ad0_66be1_1615247999_91db5af7f95f143a155561df884a0fdc.crt.cache
not sure what the .cache one above  is i didn't try using it..

This is what my config file looks like

{

        /* Port on which you would like to run the server */

        "port":5443,

        /* development mode allows to see details of request and response in real time when server is running,

        you may leave it empty when run the server in production */

        "mode":"development",

        /* This file will be used as log file for errors and warnings which may occur */

        "log":"log.log",

        /* List of allowed IPs connected to the server.

        You may put IPs one by one as "127.0.0.1","127.0.0.2" or just use "*"

        (in this case any domain may use your server for Jot Messenger module) */

        "domains":["*"],

        /* It is transformer which is used for Primus by default. We chosen sockjs,

        because it most stable in our opinion. You may read more about transformers on

        primus page https://github.com/primus/primus */

        "transformer":"sockjs",

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

        root: '/home/webgurul/ssl/certs',

        cert: 'penamacor_network_webguru_live_d9ad0_66be1_1615247999_91db5af7f95f143a155561df884a0fdc.crt',

        key: 'penamacor_network_webguru_live_d9ad0_66be1_1615247999_91db5af7f95f143a155561df884a0fdc.crt',

        /* Profile Status constants, don't need to change them */

        "OFFLINE":0,

        "ONLINE":1,       

        "AWAY":2

 }

The only key file i can find is here:
/etc/pki/tls/private/localhost.key

not sure how it can be referenced with just one "root" path

any help appreciated!