[Unable to download example files - Server certificate is not valid (Publisher 2)]

Got it - Thank you!!

[Unable to download example files - Server certificate is not valid (Publisher 2)]

Hi all, 

as I am quite new to the Publisher community please excuse me if this is a question that belongs to another section on this forum/ has been answered before (I did not find anything by searching here though).

To familiarize myself a bit more with all the features Publisher 2 offers, I wantend to download a couple of the example files avaliable - however I do get an error message that the server validation failed and therefore no download could be started (screenshot in German only - sorry!).

(Translation of error message: Error downloading the sample. The following error occurred: The certificate for this server is invalid. You may be connecting to a server pretending to be "beta-downloads.serif.com" and compromising confidential data)

Does anyone have an idea on how to solve this?  Any help is apprechiated!  Thanks in advance!