Please note, that starting with April 20th, the Wing Helper shop will only accept connections from web browsers supporting TLS 1.2 (or newer) secure connections. This move was required in order to improve the security of your private data.
All current web browsers support TLS 1.2, therefore this change should have no ill effects on you. If you are not sure whether your browser supports TLS 1.2 or not, you can check it on this web page. The list of all browsers supporting TLS 1.2, as well as the explanation how to activate TLS 1.2 (if it is deactivated) can be found here.