Facing issue with certificate generation for Blynk IOT server

I had used letencrypt with the domain it worked but I am aren’t sure but I guess the default path where the certificate&keys are generated /home/ubuntu might have been deleted…was getting certificate error while retrying to start the server.Kindly guide me how to fix same…thanks.Attached is the image of screenshot


What method do you used to obtain the certificate?
Did you use certbot? Or other clients?

If you are using certbot / certbot auto, please try to run certbot certificates / ./certbot-auto certificates

Thank you

Actually there is a file server.properties where if we enter hostname and contact email the respective certificate is generated…have shown the screenshot as in docs

…It was working but I guess the concerned certificate/key has been deleted and it’s not re generating due to some reason

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