and was asked to have the web server display ‘the following content’ at http://www.mydomain.de/.well-known/acme-challenge/xxxx : yyyy . According to the instruction on how to generate this from command line, I take xxxx is a simple ascii text file containing nothing but the text string yyyy ?
Still, I received the error message urn:acme:error:unauthorized :: The client lacks sufficient authorization :: Error parsing key authorization file: Invalid key authorization: malformed key thumbprint … can anyone tell me the reason for this error? Can’t see what I might have done wrong.