oh well sort of :
nginx: [emerg] BIO_new_file("/etc/dehydrated/certs/voip.synthesis-it.co.uk/fullchain.pem") failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/dehydrated/certs/voip.synthesis-it.co.uk/fullchain.pem','r') error:2006D080:BIO...