Technical problem

[WuRRzAg]

I was trying to upload the client because the server light was red and log in yellow.
When the PC couldn't read anymore the launcher and this error popped up.

What can I do?

Error Downloading updater:
System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. ---> System.Security.Authentication.AuthenticationException: The remote certificate is invalid according to the validation procedure.
at System.Net.TlsStream.EndWrite(IAsyncResult asyncResult)
at System.Net.ConnectStream.WriteHeadersCallback(IAsyncResult ar)
--- End of inner exception stack trace ---
at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
at System.Net.WebClient.GetWebResponse(WebRequest request, IAsyncResult result)
at System.Net.WebClient.DownloadBitsResponseCallback(IAsyncResult result)

[Haskr]

You have to set your Date back a few days for the launcher to work.
Many people have the same problem at the moment.
No need to update.