TypeError: Cannot read property 'proxyToClientResponse' of null

[devallareddyb]

Hi when ever i am running i am getting error and application getting crashed

Listening on port 5555
Forwarding to addresses in 2001:19f0:4401:f49::/64 subrange
[Error: 140696405657472:error:14094418:SSL routines:ssl3_read_bytes:tlsv1 alert unknown ca:../deps/openssl/openssl/ssl/record/rec_layer_s3.c:1544:SSL alert number 48
] {
library: 'SSL routines',
function: 'ssl3_read_bytes',
reason: 'tlsv1 alert unknown ca',
code: 'ERR_SSL_TLSV1_ALERT_UNKNOWN_CA'
}
/root/4proxy6/4proxy6.js:44
ctx.proxyToClientResponse.writeHead(503);
^

TypeError: Cannot read property 'proxyToClientResponse' of null
at /root/4proxy6/4proxy6.js:44:9
at /root/4proxy6/node_modules/http-mitm-proxy/lib/proxy.js:534:12
at Array.forEach ()
at Proxy._onError (/root/4proxy6/node_modules/http-mitm-proxy/lib/proxy.js:533:24)
at Server.emit (events.js:311:20)
at Server.addListener (https.js:77:15)
at Server.emit (events.js:311:20)
at TLSSocket.onSocketTLSError (_tls_wrap.js:1025:29)
at TLSSocket.emit (events.js:311:20)
at TLSSocket._tlsError (_tls_wrap.js:876:8)