Certificate not been generated and renewed

I just installed the latest version of blynk server v0.41.15, the server is getting started but as earlier it didn’t showed generating certificates also the domain of mine (automation.minervatech.xyz) shows error as the certificate seem to expire which I am currently proceeding …kindly guide how to resolve

As my current letsencrypt certificate had expired had removed .crt file as well but while running the new blynk, it doesn’t mention generating certificate as earlier server starts but doesn’t renew the expired letsencrypt