SSL error when calling /signal API

Hi,

from time to time, when my Node server invokes the /signal Camunda API via https , I get the following error.
This seems to be a random bug, because most of the time, it works fine (and for the same signal).

There is no message in the Camunda log file.

Would you please have any idea of the reason?

I anticipate that this might not be related to Camunda, maybe an error on my server, but as I don’t know for now, I am still asking in case you have a suggestion.

(I replaced my actual server address with myserver below)

Many thanks!

FetchError: request to https://myserver/engine-rest/signal failed, reason: write EPROTO 140167528908608:error:14094438:SSL routines:ssl3_read_bytes:tlsv1 alert internal error:../deps/openssl/openssl/ssl/record/rec_layer_s3.c:1544:SSL alert number 80
at ClientRequest.<anonymous> (/app/node_modules/node-fetch/lib/index.js:1483:11)
at ClientRequest.emit (events.js:315:20)
at TLSSocket.socketErrorListener (_http_client.js:469:9)
at TLSSocket.emit (events.js:315:20)
at emitErrorNT (internal/streams/destroy.js:106:8)
at emitErrorCloseNT (internal/streams/destroy.js:74:3)
at processTicksAndRejections (internal /process/task_queues.js:80:21) {
message: 'request to https://myserver/engine-rest/signal failed, reason: write EPROTO 140167528908608:error:14094438:SSL routines:ssl3_read_bytes:tlsv1 alert internal error:../deps/openssl/openssl/ssl/record/rec_layer_s3.c:1544:SSL alert number 80\\n', 
type: 'system',
errno: 'EPROTO',
code: 'EPROTO'