INFO: eWallet Compatibility for Mac OS X
eWallet for Mac no longer supports OS X 10.6 (Snow Leopard), or older.
eWallet for Mac 8.0 (and newer) is compatible with Mac OS X 10.9 (Mavericks) or later, (including Yosemite and El Capitan).
You should be able to update to the latest version of eWallet via the Mac App Store.
If you still have problems starting eWallet after updating, you may have to clear eWallet's old preference information. You can do that through the terminal.