https://bugs.winehq.org/show_bug.cgi?id=54641
--- Comment #5 from Rafał Mużyło galtgendo@o2.pl --- I'd say this:
err:winediag:gnutls_process_attach failed to load libgnutls, no support for encryption
strongly suggests that you should take a deeper look at your wine installation.
Though I can't tell whether or not it's relevant to this bug...