Node-RED: OpcUa Client node

[tad]

Dear Armin,

If I take out the 'OpcUa Client' node and set its properties as attached png files and deploy it, the following error will occur.
I tried it with netPI RTE 3 system software version both 1.2.2.0 and 1.2.1.0.
If I use UaExpert on a PC side, this software tool can communicate with Siemens S7-1500 properly.

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OPC UA connection error: Command failed: "openssl" req -new -sha256  -text  -extensions v3_selfsigned  -config "/root/.config/node-opcua-default-nodejs/PKI/own/openssl.cnf.tmp" -key "/root/.config/node-opcua-default-nodejs/PKI/own/private/private_key.pem" -out "/root/.node-red/node_modules/node-opcua-client/certificates/client_selfsigned_cert_2048.pem.csr" -subj "/C=FR/L=Orleans/O=Sterfive/CN=NodeOPCUA-Client@NTB827EBB5D102"

Can't open /root/.node-red/node_modules/node-opcua-client/certificates/client_selfsigned_cert_2048.pem.csr for writing, No such file or directory

1996263440:error:02001002ystem library:fopen:No such file or directory:../crypto/bio/bss_file.c:69:fopen('/root/.node-red/node_modules/node-opcua-client/certificates/client_selfsigned_cert_2048.pem.csr','w')

1996263440:error:2006D080:BIO routines:BIO_new_file:no such file:../crypto/bio/bss_file.c:76:
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Moreover, as NoderedContainer_1.png, I cannot map a volume when creating the Node-RED container.
I am afraid it is the reason for the error above.

Thank you very much for your advice.
Best regards,