I am using the Tiger skin and just updated to jAlbum 17,1,1....
The current version of jAlbum is 19.1. Why are you using an out-of-date version? Your license covers the latest version.
The error message is Can't connect. Server reported: Login authentication failed.
That's pretty clear - it doesn't recognize your username or password. Pull up Tools, Upload/Manage, and take a look at the settings for your server. If you think they're correct, but they still don't work, you'll have to contact your web host for more information.