Using default temp DH parameters error setting certificate

[jeetash1]

$ openssl s_server -cert server.pem -WWW
Enter pass phrase for server.pem:
Using default temp DH parameters
error setting certificate
139644954981696:error:0909006C:PEM routines:get_name:no start line:../crypto/pem/pem_lib.c:745:Expecting: DH PARAMETERS
139644954981696:error:140AB18E:SSL routines:SSL_CTX_use_certificate:ca md too weak:../ssl/ssl_rsa.c:310:

[jeetash1]

[OpenSSL error when trying to runopenssl s_server -cert server.pem -WWW ?

[MSP-Greg]

Are you using Puma? Your code is opening a server with openssl...