Hi, I see that the Certificate files .key and .crt are created for a Domain but no .pem file. Did I configure something wrong? Because I would need that .pem file for an Web App.
Unless there is other specific details / requirements, I think you can simply DIY as simple as running "cat your_domain.key your_domain.crt > your_domain.pem" to produce it, though I do not know why your web app would need that.
No, for websites no .pem file is created automatically. Only the server certificate. You could create a script that checks if the certificate is renewed, if so let it do the command @ahrasis suggests and run that script daily in a cronjob.